Q: How will Quora make money? A: Advertising.

Y Combinator’s oldest child, Quora, has apparently finally found its way … to revenue.

Quora, the question-and-answer website, will start to display ads within 12 to 18 months, Marc Bodnick, Quora’s head of business and community, told Bloomberg in an interview today.

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Quora’s ads will work like Google’s search ads, showing users ads that are relevant to their search queries. People often use Quora to get information, sifting through Quora’s large repository of user-generated information and answers. Quora’s well known for having a large number of public figures and experts contributing answers to questions about them, their work, and topics in their domains.

“People who ask about cars are very likely to buy a car in the next month,” Bodnick told Bloomberg.

It took almost six years, but Quora has finally found its way to monetize. Former Facebookers Adam D’Angelo and Charlie Cheever founded Quora in June 2009. The startup announced its participation in Y Combinator’s Summer 2014 accelerator class just one month after raising $141 million.

In contrast, question-and-answer community Stack Overflow, which announced $50 million in funding earlier this week, is hunkering down on job listings for revenue.