@steverubel, SVP/Director of Insight, Edelman Digital

Sites with no social interactivity component will soon be at a disadvantage.

Who should Twitter buy? Possible suggestions: FriendFeed, TweetDeck, Seesmic, Hootsuite/CoTweet, 37 Signals, Payment Solution, Bit.ly, Twittercounter. There is also the possibility of partnerships with NGOs, government, and social networks.

Twitter can/may make money on premium apps

There is NO threat to Twitter except

  1. Facebook (maybe) and
  2. Scaleability (probably not)

The only possible Twitter acquirers are Google and Microsoft. No one else.

Another important conclusion: Twitter as a sentiment engine.

Resource: awesome future of Twitter mindmap.