Now that it’s been a year since Facebook went public, the next big IPO circus is likely to involve Twitter. CEO Dick Costolo — as expected — didn’t announce concrete plans for such an IPO Wednesday during his appearance at D11, but held forth on a number of interesting topics during his session.

Advertising seems to be booming at Twitter (although Costolo wouldn’t share any numbers) but while Twitter is working more and more with traditional media companies, it doesn’t see the need as of yet to start creating its own news content, Costolo said.

“I see us partnering more with news organizations,” he said. He thinks of Twitter as a tool for news organizations and individuals to distribute content and while it’s messy at times, Costolo doesn’t seem to think that Twitter has a responsibility to verify the content itself; it does, however, want to help news…