I just spent a goodly amount of time on Del.icio.us. This could be a good way to find very specific topics using tags. I set up an account and then looked for such esoteric topics as Turkish coffee tutorials, left handed knitting and crochet. I especially liked a site with videos demonstrating stitches for left handed people. I did not search for scholarly information, but information that is a little in left field but something anyone might want to seek. I book marked my favorites and will return to download them later to my personal computer. This process is fun, but again, unless you have very specific terms or tags you could go all over the universe searching. I do like creating my own tags as prompts, it works much as key word searching in any search engine, but being able to customize the information for personal retrieval is excellent.