I am not sure if these are really the "best" posts on this blog for 2006 but I sometimes find them useful for my "Web 2.0 in Medicine" presentations and decided to collect them in one place:
Do We Need a Free Medical Encyclopedia?
How Can a Doctor Use Google Page Creator?
Residency Program Blogs
MDCalc is a Useful Online Clinical Calculator
Cocaine FOR Chest Pain
Medical Blog Closed Down by Request of Employer
Six Tips for Happiness by a Harvard Teacher
Another blogger quits due to "blog fatigue"
Digg for Medicine: Nature Publishing Group Launches Dissect Medicine
Physician Bloggers Talk to a Medical Librarian
Microsoft Blogger Has as Much PR Power as CEO. What Does That Mean for Your Hospital?
How Can Academic Physicians Benefit From "Google Office"?
Make Your Own "Medical Journal" with Google Personalized Page
What I Learned from Making the Website of the Cleveland Clinic Hospitalists
What's New in General Internal Medicine?
Top 5 Medical Podcasts I Listen To
Complete List of Medical Abbreviatons and Acronyms
American Society of Nephrology (ASN) Renal Week 2006