Social bookmarking is a new concept to me. At least the social part, if not the bookmarking and tagging part. I've bookmarked a website or two in my laptop's web browser, and noticed tags or labels on blog entries. However, with a website like delicious.com, people can bookmark and tag websites, see what other websites are being tagged, and who is tagging which websites. It is an intriguing concept because of the user generated tagging. Instead of a controlled vocabulary of subject headings, a person can tag a website in any way they see fit.
Activity One:
I typed "pilates" into delicious.com. I came up with 9000 results. Of the 50 or so that I glanced over, most appeared to be instructions or descriptions of some sort. I found wikipedia articles, about.com articles, podcasts, and youtube videos. Most of the other tags on these results mentioned exercise, fitness,and health which were all expected.
The same search in google yielded 4 million results. These results tended to be associations (e.g. The Pilates Association of Canada), certain systems (Stott Pilates or Winsor Pilates), and pilates studios in various locations.
In broad terms, at least for a topic like pilates, the sites that people are tagging in delicious seem to be more "how to" than the sites that seek to gain in google (i.e. that you'll pay to join the studio Guelph or Kitsilano).
Activity Two:
I signed up for delicious, and saved a few websites. Honestly, I don't see myself using this website for bookmarking since it's generally not an activity I take part in. It's simply a personal preference, because I do appreciate the theory behind social bookmarking.
I can, however, see myself using the site to explore some of the tags. For example, in preparation for my oral presentation, I can now read the pages that "louisethelibrarian" has tagged on information literacy. Then I can see the pages all delicious users have tagged on information literacy. Nifty! I feel like it brings the serendipity back into searching.