By John Gruber
Clerk’s iOS SDK: Authentication and user management for Apple applications.
Claire Cain Miller, reporting for the NYT:
The advertising program, which Twitter calls Promoted Tweets, will show up when Twitter users search for keywords that the advertisers have bought to link to their ads. Later, Twitter plans to show promoted posts in the stream of Twitter posts, based on how relevant they might be to a particular user.
Update: Twitter’s own announcement.
★ Tuesday, 13 April 2010