Delicious and LibraryThing
Delicious
I wonder where they got the name from? I found the Delicious site quite hard. I only tagged a few websites. Delicious is a great way to keep all your bookmarks together, but I don't think that I will use it personally, but I can see how it can be handy in a library as you can have all of your most used websites in one place instead of saving them to favourites.
LibraryThing
I really like LibraryThing. I can keep track of what I am reading and what I have read. LibraryThing is a good social network system. It is a great way of keeping up-to-date with the latest books. It took me a while to figure out where to get the "widget thing" from and where to put it, but I finally found it. LibraryThing is really fast at finding your books and make it easy to search for titles and add them to your list of books. I think LibraryThing is great for library patrons to see what books other people are reading.