Facebook,introduced a plan Thursday that could make it more than just a place  to connect with friends, but also a source for news, entertainment and online  retail.
Teaming up with 65 partners including Amazon and Microsoft, Facebook will  let companies create applications inside its network. Facebook members, for  instance, will be able to write Amazon book reviews and post them on their  Facebook pages. If their friends read the review and want to buy the book, they  can click on an Amazon button and connect directly to the online store,
