i think they are more than just being an online directory IMO. Having an online directory means you'll have to go to someone's profile to view their personal de

i think they are more than just being an online directory IMO. Having an online directory means you'll have to go to someone's profile to view their personal details but with news-feed and photo-tagging, You started getting updates on "our" news-feed about our friends' life and activities and about people they are hanging out with at parties/places. Online directory is more of asynchronous communication whereas now facebook is providing more of a synchronous communication.