I think there will come a time when Facebook is replaced. I don't, however, think it's going to come as an obvious social networking site. Let's back up a bit

I think there will come a time when Facebook is replaced. I don't, however, think it's going to come as an obvious social networking site. Let's back up a bit to what Facebook was in its nascent days: a place to go and see what others were doing. The quality of the content was high relative to what the users wanted. Someone else here on HN posted within the last week or so a link to Reed's Law (Reed's homepage: http://www.reed.com/dpr/ http://www.reed.com/dpr/) which basically outlines how social networking groups become more useful. So, the question that someone is going to have to answer to beat Facebook is, 'How can I create something that is providing a large number of people with higher quality content than Facebook?' Personally, I think it's going to be a Trojan Horse (in the historical sense, not the malicious program sense) that does this. Something that allows users to join (probably using their Facebook account to log in and register), and then facilitates sharing high quality information with others. The first iteration may not be an obvious threat to Facebook, but it's coming. I honestly believe it's going to come from the healthcare space, and probably in about 10 years. Full disclosure: I applied to the YC Fellowship with an idea of how to do this from healthcare, although it's not as obvious from the application, that's the end goal.