Biz Stone, Evan Williams and Jason Goldman are relaunching The Obvious Corp., the startup that gave birth to Twitter and faded as the micro-blogging service took off on its own.

The men made their announcement Tuesday on Twitter, saying that the relaunched company will make “systems that help people work together to improve the world.”

The Obvious Corporation started out as a company Williams created to buy back a failed startup from his investors — a startup that included the seeds of Twitter. After about six months, the new service started to take off and became the main focus for the group.

Now, the men are stepping back from the phenomenon to pursue other interests.

Stone said he will continue to work with Twitter, but will focus more of his time on his non-profit work and The Biz and Livia Stone Foundation. But he stressed that he’s not parting ways with Twitter quite yet.

“My work on Twitter has spanned more than half a decade and I will continue to work with the company for many years to come,” Stone said in a blog post.

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