I don't see a significative difference between Digg and Tweetmeme. Growing in popularity, an app like Tweetmeme will tend to be just another digg and it will become more difficult for news to reach the first page, will have deal with evil manipulations, etc. At some point it's a question of recensy versus popularity versus authority (friends, reputation, ...) ... -> a ranking problem. The more real time you are, the less you can rely on the popularity factor. Popularity factor is the main idea behind Digg and Tweetmeme, they just need better ranking, search, filtering, ... a better information access platform. Real time is overratted. The average person have better things to do than scanning (in real time :-P) lots of real time news just in case of .. They just want to know what everybody knows. But real time information is very important to a lot of people too. Is the real time race winner the one on which the story have been submitted first? Then the popularity of the service is a very important thing. Twitter is already very popular. Twitter is more than a news sharing and voting app, I think that's the main reason why. - alltoute from FriendFeed MT Plugin