I used several of the suggested blog search tools to find useful library tools. Bloglines search tool is very easy to use, but all of these suggested sites provide so much information it can be overwhelming. That is probably the most difficult thing for me. Just from this exercise I added several of the Reader's Club book review feeds to my Bloglines. I get several print book review magazines, but I think that these online sources will be easy to use and Bloglines is collecting them for me in one place. I also added Kathy Schrok's site and the calcurriculum wiki to my RSS feeds so I can catch what you all add too!
The hard thing for me is having so much to try out and read. I want to try it all, but I will need to concentrate on a few that work for me, keep up with this for now, and not get too distracted. I think that RSS feeds and tags can help me stay focused. I know that the exercises and examples will provide a future stash of things I can come back to, as well as going on to the next new thing.
From a Bloglines search for Library 2.0, I found the 2007 Web 2.0 Awards, announced on May 9, 2007. http://www.seomoz.org/web2.0/short
So many of the things you are asking us to explore and use won on this list. I haven't even had time to look at all of it yet, and I've seen: Flickr, pbwiki, rollyo, and del.icio.us. I'll try read the rest when I've finished this post.