It’s been a long time coming but a Twitter executive gave the first in-depth look on Wednesday at how the microblogging service plans to make its money.

There will be two “pillars” to Twitter’s business model, Chief Operating Officer Dick Costolo said at the company’s Chirp developer conference in San Francisco. The first, announced earlier this week, is Promoted Tweets, which lets advertisers pay for sponsored tweets that appear at the top of search results for certain keywords.

The second pillar is commercial accounts, which Twitter started to talk about last year. That service will allow a business to pay for a Twitter account in return for detailed analytics tools and the ability for several people to post to the same account. Commercial accounts are in beta testing with “a couple of hundred customers” and will be offered more widely in the future, though Costolo didn’t say when.

More: http://www.macworld.com/article/150650/