Thanks for all the responses and input to my original Real Estate 2.0 posting! As I mentioned in my post, the companies listed were only representative of the categories but since then I have started to compile a more comprehensive list of categories and companies which i will share in the next couple of weeks as time allows. There were a couple categories I missed (podcasting for example) as well as entries into categories like community that have been announced since (Trulia for example).

A number of individuals have ask to be notified as I update the list. I have setup a Yahoo Group (Real Estate 2.0 Group) for that purpose. If you want to receive uploads via email simply join below:

We appreciate all blog mentions we got from our partners and other folks on the list including Inman Blog, Zillow, HotPads, Altos Research, MyNextDeal, Jaxtr, Realty Baron, Eppraisal (RealtyThoughts) as well as other industry blogs such as Curbed, Rain City Guide, The Real Estate Tomato, Screenwerk, and many others.