AOL has acquired the US-based blog site for IT start-ups TechCrunch.
Michael Arrington, founder of the blog, said the sale was a perfect fit for the site.
"I fully intend to stay with AOL for a very, very long time. And the entire team has big incentives to stay on board for at least three years," he said.
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The cost of the acquisition has not been disclosed, but reports have speculated that it may have been in the region of $25m (£15.8m).
The deal will further AOL's strategy to develop its editorial output, said the company in a statement.
This week AOL also announced the acquisition of web video firm 5min Media and social networking tools company Thing Labs.