Bloglines helps me track hundreds of current and former participants in School Library Learning 2.0 professional development course. It is most rewarding when I learn new cool tools from former "students". That is how I learned about wordnik, an online dictionary of sorts. Thanks, Joan!
According to the wordnik website, it is still in beta test mode. It defines itself as "An ongoing project devoted to discovering all the words and everything about them." The team behind the site is based in Chicago -- wonder if I'll get to meet them at the American Library Association conference this week?! Stay tuned.