Yahoo Inc. (Nasdaq: YHOO) continued a startup buying spree with the acquisition of Bread.

Bread, based in San Francisco, was a URL shortener that allowed users to make and insert ads that people clicking through a shortened link’s webpage would have to view. The product has already been shuttered, but Bread links will work through Nov. 11. Terms of the deal were not disclosed.

The company had $3.5 million in venture capital packing from Raptor Ventures, Marc Ecko, MESA+ and others.

Yahoo added a team of six engineers and product managers to its advertising technology group through the deal. The company has a history of acquiring startups for their talent - in May the company bought Tumblr Inc. and brought founder David Karp on board. 

In August, Yahoo bought Rockmelt, a venture capital-backed startup that focused on developing web browsing technology.  In July, the company bought Qwiki Inc., a mobile application that enables users to create videos on the iPhone. Before that, in May, Yahoo bought Tumblr in its biggest deal since 2003. 

For more on Yahoo’s startup buys, see “10 Startups Marissa Mayer Bought Before Tumblr.” 

Technology