Goodreads

I love Goodreads. It is basically an online bookclub. Here's how it works. You sign up for an account (using your email account) then you post books that you've read, are reading or will read. Then you add your friends to see what they're reading. It's a great way to talk about books without the drawbacks of a physical book club (like reading books you don't actually want to read and discussing them with people you'd rather not discuss with). You can rate books you've read, and write reviews as to why you've rated that book the way you did. You can post comments about books your friends are reading and even join discussion groups. I've learned so much about my friends' taste in books, and been inspired to read books that I otherwise wouldn't have. There is even a statistical analysis in which you can compare your taste with your friends to see how similar they are.
For example, with one of my friends, we have "3 books (or 8.57% of your library and 75.00% of her library) in common. Your tastes for those 3 ratings are 73% similar."
Books that I've read because of friends' high ratings on Goodreads: Me Talk Pretty One Day, Time Traveler's Wife, Water For Elephants and Eat Pray Love. After I read them, I was able to discuss them online with others who had read them.
So there you have it, my plug for Goodreads. Hey, once and English major, always and English major.