Twitter has snapped up Posterous, a blogging platform known for its slick digital media-sharing interface.
The value of the deal wasn't confirmed, but it is believed all staff will transfer over to Twitter.
The microblogging giant said in a blog post that the Posterous team had "built an innovative product that makes sharing across the web and mobile devices simple - a goal we share."
Acquisitions have given us people and technology that have enabled us to more quickly build a better Twitter for you.
Founded in 2008, Posterous is one of the better-known companies emerging from the tech incubator Y Combinator.
"We're always looking for talented people who have the passion and personality to join Twitter," the company said in a blog post. "Acquisitions have given us people and technology that have enabled us to more quickly build a better Twitter for you."
Posterous offered an equally glowing tribute in its own blog posting announcing the acquisition.
"The opportunities in front of Twitter are exciting, and we couldn't be happier about bringing our team's expertise to a product that reaches hundreds of millions of users around the globe. Plus, the people at Twitter are genuinely nice folks who share our vision for making sharing simpler," it said.
"Finally, we'd like to offer thanks to all of our users, especially those who have been with Posterous since day one. The last four years have been an amazing journey. Your encouragement, praise and criticism have made us better. Thanks for that. We look forward to building great things for you over at Twitter."
Posterous said services will continue as normal and that it would flag any proposed changes. It also said it recognises some users may want to jump ship or back their data up and will issue instructions for both options in the next few weeks.
