Professional PI’s

1. G.E. Investigations – This Arizona based private investigation firm run a blog that responds to news related to the industry, posts about wanted criminals and persons-of-interest, investigative tactics, announcements, hacking, and more. The blog is easy to navigate and well organized. Must Read: West Virginia Private Investigator Arrested for Illegal Wiretapping
2. The Marriage Detective – A newly utilized blog for a professional detective agency, this blog focuses on partner investigations and the topics they post about reflect information that would be useful to a potential client. They offer national reference servicing and are sales oriented, but there is some good information in the posts. Must Read: 5 Myths About Private Investigators – What They Cannot Legally Do
3. Diligentia Group Blog – This professional agency provides some excellent advice in this well designed blog, both for other private investigators and for potential customers considering hiring one. Frequently updated and easy to navigate. Must Read: 101 Things a Private Investigator Can Do
4. AFX Search Blog – This Florida based investigative firm provides regular blog posts on of use to both potential clientele and other investigators ranging from different research strategies, to legal issues, and more. Must Read:  Asset Recovery – Dangers of delaying civil action until criminal cases are completed
5. ICORP Investigations Blog – A newer blog run by a Florida-based investigative firm, they have started off strong with quality articles focused on informative articles on investigative methods and responses to relevant news. Must Read: Is Someone Recording This? It’s Harder to Find Out
6. Orange County Private Investigator Blog – Full of useful information for people interested in doing their own investigation, including product reviews, practical skills, information about PI services, and general information. Must Read: Social Media: Your Private Life Made Public!
7. JFA Brisbane Blog – Updates, advice, and stories from the trenches, this blog is written from the perspective of an Aussie licensed private detective firm.  A great resource for the prospective client or wanna-be investigator alike. Must Read: So You Think You Might Like To Be A Private Investigator? 
8. Jan B. Tucker: The Detective Diary – Long-lived and frequently updated, The Detective’s Diary has been recognized for its quality before. Jan Tucker focuses on more than just PI topics; he’s also a progressive political activist and keeps tabs on topics important to hislocal area and national issues. You may even find a review of local venues or notices of interesting events tucked away here and there. Must Read: The Small Freaky World of White Collar Crime
9. Private Eye Confidential – This California-based investigator keeps us updated on local news, personal stories, and fascinating history related to his area alongside practical tips for other investigators. Must Read: My First Domestic Success
10. Handcuffed to the Ocean – Repeatedly noted as one of the best PI blogs around, this fantastic combination of well-told stories from real investigations and beautiful introductions to the beaches and dive sites he’s explored. Must Read: Spearman’s Barge
11. Mass Private I – This blog’s focus is on issues of criminal justice and civil rights, and takes a watchdog stance on issues of state and federal government stepping over the boundaries of ethics and the spirit of law in their own investigations. Must Read:  NYPD’s rationale for stop & frisk quotas: some of their police officers are lazy.

The Criminal Justice World

12. Criminal Justice USA – This site illuminates its readers on a wide array of criminal justice topics with playful design and accessible writing. It regularly features infographs meant to quickly provide statistics in an easy to comprehend manner. Must Read: A Timeline of Police in the U.S.
13. Tickle The Wire – This blog keeps its readers updated on the news and issues relating to federal law enforcement. Updated frequently and featuring a number of experienced columnists, it is a worthy addition to anyone who wants to get a feel for the national crime beat. Must Read: Column: The Justice Department’s Seizing of Associated Press Phone Records is Disgusting!
14. Murder by Gaslight – A fascinating look into the crime of 19th Century America. It includes profiles, histories, stories, photographs, and resources for researchers. A great read for those who are interested in the history of investigation, crime writers, or historical crime aficionados. Must Read: The Legend of Lavinia Fisher
15. Crime Magazine – All the stories about crime, historical and modern, that you could wish to read. Organized by type of crime, regularly updated, and very much worth reading. Helpful for investigators in studying case files to gain a greater understanding of how criminals operate. Useful for crime writers for inspiring the imagination. Must Read: Nixon, Sinatra and the Mafia
16. Crime Library – This regularly updated blog shares interesting crime stories from all around the world, including the notorious and mundane, with insight into the criminal mind. An excellent resource for investigators learning more about criminal methodology or fictional crime writers looking for new ideas. Must Read:  The Definitive Rodney Alcala
17. The True Crime Report – Keeping readers up to date on the latest unsolved crimes, homicides, sex crimes, missing persons, and my personal favorite category – douchebags. Regularly updated with quick and dirty updates on real crime, with links back to the original sources. Must Read: Carmen Wysong, Girl Scout Troop Leader, Steals Thousands in Cookie Money
18. The Crime Scene – Updates on crime from the southwest Missouri region. Murders, missing persons, and your typical medley of hooligans and mischief. Regularly updated with fairly detailed accounts of each crime and links to further information on each case. Must Read: Oklahoma Cold Case Heats Up With Discovery of Three Sets of Human Remains
19. My Life of Crime – Despite a rather busy format, this blog does an excellent job of keeping its readers up to date on criminal investigations, upcoming executions and trials, and notable sentencing. It features monthly themes and historical tidbits as well. Regularly updated with lots of linked resources relating to each crime. Not much in the way of personal perspective on each case, but lots of data.  Must Read:  Deadly Wives: Nancy Mancuso Gelber, true crime writer, tried to hire a hitman to kill her husband
20. The Thin Blue Line – A UK based blog focused on issues relating to crime and criminal justice matters in the region. Regularly updated, well written and researched, with excellent analysis from professionals with experience in the field. Must Read: Contempt of Cops – The Thing End of the Wedge
21. Constable Chaos – This UK policeman’s blog contains both criminal justice insights and some playful steaming off from a man behind that thin blue line. A recent post includes a picture and lyrics to a lively tune about policemen rounding up drunks on a Friday night. Another details the unexpected rescue of a Norwegian Blue parrot. Must Read: #GangnamPoliceman
22. The Thinking Policeman – Opinion and updates about criminal justice matters and behind the scenes accounts from his peers still on the job are frequently seen on this retired UK police inspector’s blog. Issues are primarily relevant to his side of the pond. Must Read: Gadget Lives On – The iPhone Resolution
23. Tales of a Public Defender Investigator – This blog is a fascinating look at investigative work done on the part of a public defender. Lots of useful tidbits in here, plus legal updates and events relevant to the industry. The color scheme leaves something to be desired, however. Must Read:  GANGS 101
24. LAPD Blog – Any investigator in the LA area might want to keep up with the goings-on in the LAPD. This blog keeps readers informed about recent criminal cases, recruitment information, legal changes, and more. Must Read: Suspects Attempt to Lure Young Girls into Cars
25. Bounty Hunter Discussion – All sorts of information useful for bounty hunters or private investigators found here, including product reviews and updates, news, tips and tactics, and practical business matters. Must Read: Judge in Favor of Private Bail
26. Guns, Gams, and Gumshoes – This blog exists in a strange balance point between the writing world and the world of the working PI. It includes resources and information handy for PI’s and writers chronicling the adventures of literary private dicks. Must Read: Staying Legal in a Shady Business: When PIs Are Asked to Break the Law
27. L.A. Noir – An enjoyable read, this blog is a combination of personal stories from a crime writer’s perspective and interesting tidbits from real-life crime stories in the LA area. Must Read:  The Dead Lady in the Water Tank Story Just Got Weirder
28. Detectives Beyond Borders – Reviews of great literature, news about upcoming noir events, behind the scenes news about the writers in the genre, and more. Frequently updated, well written, and easy on the eyes. Must Read: “Ah refuse tae be victimized”: William McIlvanney and Glasgow patter

Great Detective Story Blogs

29. Guns, Gams, and Gumshoes – This blog exists in a strange balance point between the writing world and the world of the working PI. It includes resources and information handy for PI’s and writers chronicling the adventures of literary private dicks. Must Read: Staying Legal in a Shady Business: When PIs Are Asked to Break the Law
30. L.A. Noir – An enjoyable read, this blog is a combination of personal stories from a crime writer’s perspective and interesting tidbits from real-life crime stories in the LA area. Must Read:  The Dead Lady in the Water Tank Story Just Got Weirder
31. Detectives Beyond Borders – Reviews of great literature, news about upcoming noir events, behind the scenes news about the writers in the genre, and more. Frequently updated, well written, and easy on the eyes. Must Read: “Ah refuse tae be victimized”: William McIlvanney and Glasgow patter

International Private Investigators

32. Crown Intelligence PI & Intelligence Services Blog – This is a company blog, so it is primarily focused on articles geared for potential customers. It discusses various tactics used by private investigators, how to pick a PI suitable to your needs, the role of investigators, and news related to the industry. Written in an accessible style with an easy to navigate format. Must Read: Things to Consider Before Hiring a Private Investigator
33. PI Telegraph – This e-zine based out of the UK targets investigative professionals who are interested in free resources, relevant news, product reviews, and other tidbits that can help hone skills.  The design is elegant and the site is well-organized, making it easy to locate topics of interest. Must Read: How Much Should I Charge? Pricing For Profit
34. Keynorth Blog – A professionally oriented blog from Canada reporting on changes to laws, professional development, and information that can be applied in the field. Must Read:  Primer on the Federal Administration Act, Asset Recovery, Reporting and Deterrence
35. Bali Eye Private Investigation – This blog provides useful information on how to protect oneself and avoid scams as a potential client, and offers advice and tactics to other investigators. Based in Indonesia, it provides a unique perspective on private investigations in other parts of the world. Must Read: Dating Cons Games in Indonesia

E-zines, News, and Community Blogs for PI’s

36. PIbuzz.com – This hub of information is made for and by private investigators. It features news important to the industry, product reviews, tips and tricks, and useful research links. The design is pretty clean and the site is easy to navigate and offers a newsletter. Must Read: Dynamic Internet Searching with Google Products
37. PI Stories – Covering a wide range of stories of interest to the PI industry, including personal perspectives, responses to news, case studies, examinations of technology, and more. Long running and easy to navigate. Must Read: Parents Find Out About Their Daughter’s Death Through Facebook
38. Fraud Magazine – Technological updates, headline responses, regular columns, professional development tips, product and book reviews, and much more are featured in this bimonthly magazine focused on white-collar crime and fraud examination techniques. Their articles are focused on providing actionable, practical information.  Must Read: Cyber-attack vector? Who, me?
39. The Background Investigator – This is essentially an aggregate source of news relating to information gathering. It covers popular stories, national, and international news. The news is primarily focused on background screening but covers related topics as well. Must Read: Washington State Courts Office Suffers Data Breach

Advice, Tactics, and Resource Oriented Blogs

40. PI Advice – A comprehensive blog designed to aid new and veteran P.I.’s interested in honing their craft. The blog features a minimalist style and includes podcasts, apps, and an online store with tools for investigators. The posts range from advice, to real-life stories, to product reviews, and more. Must Read:#58: Investigation Stories – The Lessons I Learned with a Bit of Luck – Part 1
41. The Confidential Resource – As the title suggests, the focus of this blog is on providing useful sources and methodology for investigators and researchers.  It is well designed with a clean and modern look, easy to navigate, and searchable. Must Read:  The Cost of Investigative Internet Research
42. BPI Security Blog – This blog is full of excellent advice from the field, practical skills development, and great information about the business of running an investigative services firm from the perspective of a successful firm. Must Read: Slight of Hand(lers)
43. Title Search Blog – This blog is focused on real-estate oriented investigative work and news. It includes up to date legal information, news reports related to the industry, practical advice, and even videos with step-by-step instructions. Must Read: Case Law on Invalid Mortgages