Promoted Tweets twitter adds

Recent new from twitter - new service called "Promoted Tweet" Initially, the ads will start with search: Advertisers will be able to buy keywords, and when those keywords are searched for, the Promoted Tweet will appear at the top of the search results. 

• This form of advertising will work across all Twitter applications and clients
  

• The implementation won't be especially annoying, especially the first part. 

• This seems like a no-brainer--we're surprised it took so long.

It seems that As long as the Promoted Tweet appears at the top of the search stream, people will immediately get used to it.