I already had a del.icio.us acct. from some previous web 2.0 play. However, I took more time to explore all its facets, and added the bookmarklet buttons to my browser here. Now I need to remember to do it at my other computers, too. Naturally, I got sidetracked looking at the SJLibraryLearning2 acct., and am just getting back on track here.
I think this would be great for a course, we used it in one I audited taught by another librarian I know. It was very cool to share and collaborate with other folks exploring the same things. I don't know if this would work with high school kids, but think it would be great for college ones and professional collaborations.
For me, Technorati is confusing. I tried doing some searches, but got blocked a lot by the district filters, and became annoyed and frustrated. I could do searches via a backdoor method, but then I wasn't always sure what I was getting. (and I'm not so sure how much I care about what other people are blogging...stikes me as one of those too much time on your hands occupations.)
I looked at the Popular Blogs and checked out Boing Boing, the most popular one in the world, according to Technorati. Actually was pretty interesting, but I don't see looking at it all the time or adding it t0 my feed...more like a curiousity, just as its description claims.