I'm a bit late to the table mentioning these two relatively new Revit additions to the Revit"sphere".
First David Baldacchino has started a blog called Do U Revit?...I do. He is currently writing about the Revit projects he's taking through construction. I'm sure that you will find it useful to keep tabs on his blog. Welcome to blogging David!
Second is Joe Soliz's blog, called Revit Resource: Blogs by Topic. His approach is a fresh one, he is compiling a list of blog articles arranged by topic, by various bloggers. So consider his site a one stop shop for a topical listing of articles, short of a google search.