Don Rudder has recently created a paper.li about Revit (and RTC) at http://paper.li/AYBABTM/1308511210#
Then there is the Revit Hate site that I have posted about previously, but happily there is also a Revit Love site that you can check out. These sites bring together comments from Twitter and Facebook for easy reading.
Do you use a different Revit Portal or aggregator site? Feel free to comment.