[MeSue]

I have my Goodreads currently reading list feeding to my personal website, Facebook and Twitter. I enjoy the comments I get when someone has read what I'm reading. I also enjoy sharing meaningful quotes from what I am reading, and I keep track of these on Goodreads too. Likewise, I like seeing what my friends are reading and if someone I follow rates a book highly, I will usually check it out to see if it is something I might enjoy. I have found some of my favorite books this way. It's fun to connect with an author because you posted that you were reading their books. Similarly, it is a way for my readers to get to know me a little better without really sharing personal details with them.

I also religiously Scrobble everything I listen to via last.fm. For similar reasons... I enjoy the connections, the recommendations, and the stats these services bring to my entertainment.

Edited to add: I have very little "in person" social life. I work at home and I live in the boonies and do not have a lot of local friends. So I think this influences how involved I am in social reading and sharing.