
I joined GoodReads in 2007 as a way to help me keep track of the books I have read and those I would like to read. My "friends" include real life friends (including a few GTSD staff members), librarians I have met at conferences, and like-minded readers I have never met in person. I also "follow" the updates of many others, whose reviews help me to notice hidden gems and trends in school libraries. Updates can include books added to the "TBR" shelf (to be read), recent reviews, comments on other reviews, and posts to discussion groups. Members customize the newsfeed to show only the types of information they are interested in seeing.
So if you're looking for something good to read during the break, consider exploring GoodReads!
Similar sites: LibraryThing and Shelfari.