Twitter Uses Tweet To Announce It Has Filed IPO Documents

LOS ANGELES (AP) — Twitter is going public. The short messaging service says it has filed confidential documents for an initial public offering of stock.

San Francisco-based Twitter Inc. posted on its official Twitter account that it has "confidentially submitted an S-1 to the SEC for a planned IPO."

Twitter's IPO has been long expected. The company has been ramping up its advertising products and working to boost ad revenue in preparation.

(© Copyright 2013 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)