Updated from 10:39 a.m. to include analyst commentary. NEW YORK ( TheStreet ) -- Twitter ( TWTR ) today announced that it is expanding and rebranding its programs for advertising off of Twitter's platform. The program, which used to be called Twitter Publisher Network, is now being called Twitter Audience Platform and will allow brands to feature promoted tweets within other apps. Twitter first launched its Publisher Network last year to help advertisers expand their reach beyond Twitter, and today the program is being expanded in two ways. First of all, advertisers will now have the ability to drive tweet engagements and video views, not just mobile app installs and re-engagements, which were previously the only two objectives offered to advertisers. Twitter said it also plans to add two more objectives over the next few months: website clicks and conversions. Second, Twitter has launched new creative formats for its clients.