I did a quick check of my logs for the period of 1st May 2007 to 1st August 2007 and these are the most read "SharePoint" posts on my blog. I get about 100~ visits on average daily.

How to setup and Configure Forms Based User Administration Feature Release 1.0 Beta
http://www.chandima.net/Blog/Lists/Posts/Post.aspx?ID=6

A Guided Tour Through SharePoint HTML, CSS, and Master Page Resources (Session from Sydney Asia Pacific SharePoint Conference)
http://www.chandima.net/Blog/Articles/Presentation.aspx

How do I develop for SharePoint?
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=24

SharePoint Deployment(s) who should be involved what should be considered?
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=33

Upgrades and Migrations, now is the time to get it right (Quite topical as this is a session I am doing at TechEd 2007 in New Zealand on Monday!)
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=54

SharePoint Upgrades and Migrations there is no "Silver Bullet" (2nd Part)
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=60

Why should you care about managing your SharePoint deployment?
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=62

Notes from April SharePoint User Group meeting showcasing a MOSS Intranet
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=41

Questions on SharePoint and SQL Server
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=43

SharePoint posts from the Provoke team
http://www.chandima.net/Blog/Lists/Posts/ViewPost.aspx?ID=40

I still have to migrate my "old" SharePoint 2003 and 2007 posts from my previous blog when I have "time". The above are just the one's from my current blog based on WSS. I used "SubText" previously.