TechCrunch, headed up by Michael Arrington is a must read blog. Arrington and other writers cover almost any Web 2.0 company and on a daily basis release several excellent articles. Every day I discover new excellent sites through Arrington's blog and stay updated on the latest trends in the Web 2.0.

    The site also has a positive effect on traffic, if you take the time to leave comments. Its not a humongous influx of visitors but I get perhaps 20-40 weekly from TechCrunch in exchange for my thoughts on the various posts.

    If you are a web 2.0 company then TechCrunch is an absolute must. TechCrunch is perhaps one of the most frequently listed websites in Digg and by itself has loads of visitors including people of means stopping by every day.