Do You REALLY Know Web 2.0?

Now I've seen lists of web 2.0 sites in my travels. I've even read the web 2.o awards site from a while back.

I often read about new read/write web tools and I frequently try them out.
Here's an interesting site that is the web 2.0 mothership. Do yourself a favor and check this one out. Did you have any idea of the scope?? I had only heard about 20% of these sites.

The navigation of "GoToWeb2.0" is interesting too. Find the tiny purple tabs to scroll up and down. I kept finding myself looking for the scroll bars. Also be sure to try the search feature in the top bar. Yep, search by tag cloud. Interesting! It will take me some time to get used to that feature.

I'm sure there are some real treasures in there! Let me know what you find and don't forget the for:kpaccio tag!!