Totally agree on Facebook, but Twitter is much more valuable than the ephemeral tweets.<p>I think the difference between the two comes from the nature of user relationships. While on Facebook it had to be reciprocal (following was added later and it&#x27;s not used much), on Twitter the user relationships can be one way. That makes all the difference. This is why on Facebook the user relationships are just replicas of real-life relationships, which was great for user acquisition but it&#x27;s also a huge limitation that Facebook can&#x27;t get past. On Twitter on the other hand anyone can follow anyone and while user acquisition is more difficult, it opens up the world and gives a lot of opportunity for new user relationships. Because of this Twitter is the best social network we have so far.