Some useful patent related blogs:

• Promote the Progress (J. Matthew Buchanan) – http://promotetheprogress.com
• Anticipate This! (Jake Ward) – http://anticipatethis.wordpress.com
• I/P Updates (William F. (“Bill”) Heinze) – http://ip-updates.blogspot.com/index.html
• Just a Patent Examiner – http://just-n-examiner.livejournal.com
• Likelihood of Confusion blog (Ron Coleman) – http://likelihoodofconfusion.com
• Patently Defined blog (Mike Kondoudis) – http://patentablydefined.com
• Patent Baristas (Stephen Albainy-Jenei) – http://patentbaristas.com
• Bicycle Patents Blog (Robert L. Shaver) – http://bicyclepatents.com
• Patently-O blog (Dennis Crouch) – http://patentlyo.com
• PatentDocs Blog (MBHB) – http://patentdocs.org
• 271 Patent Blog (Peter Zura) – http://271patent.blogspot.com
• PHOSITA blog (Dunlap Codding) – http://dunlapcodding.com/phosita
• Rethink(IP) – http://rethinkip.com
• Russ Krajec – http://krajec.com/index.php?/weblog
• Securing Innovation – http://securinginnovation.com
• Daily Dose of IP (Mark Reichel) – http://dailydoseofip.blogspot.com/
• The Patent Librarian (Michael White) – http://patentlibrarian.blogspot.com
• Washington State Patent Law Blog (Mark P. Walters) – http://www.wapatents.com
• The Patent Prospector (Gary Odom) – http://www.patenthawk.com/blog/
• Green Patent Blog (Eric Lane) – http://greenpatentblog.com
• Inventive Step blog (Matt Osenga) – http://inventivestep.net/
• Inovia’s Foreign Filing blog – http://info.inoviaip.com/foreign_filing_blog/
• Modern Times Legal Patent Blog (Robert J. Sayre) – http://www.mxlegal.com/blog/
• Philip Brooks’ Patent Infringement Updates – http://www.infringementupdates.com/
• Chicago IP Litigation Blog (R. David Donoghue) – http://www.chicagoiplitigation.com
• IP Asset Maximizer Blog (Jackie Hutter) – http://ipassetmaximizerblog.com
• Tactical IP Blog – http://tacticalip.com/
• IP Watchdog (Gene Quinn) – http://www.ipwatchdog.com/
• Dear Rich: Nolo’s Patent, Copyright & Trademark Blog (Rich Stim) – http://www.patentcopyrighttrademarkblog.com/
• Director’s Forum: David Kappos’ Public Blog – http://www.uspto.gov/blog/
• IPeplton (Erik M. Pelton) – http://ipelton.wordpress.com
• IP Law for Startups – http://www.iplawforstartups.com/
• 37 Thoughts (Bryan Beel) – http://37thoughts.wordpress.com/
• The Intellogist Blog – http://intellogist.wordpress.com/
• The Presumption of Validity (Joseph Iskra) – http://www.presumptionofvalidity.com