9358670209_b5525ec1ba_c The question floating around Silicon Valley seems to be: what isn’t Yahoo buying these days?

Social browser company Rockmelt is the latest company to join the menagerie of acquisitions by Yahoo in recent months.

Rockmelt began as the brainchild of Eric Vishria and Tim Howes, Hewlett-Packard alumni who wanted to build a browser that allowed users to share things over Twitter and Facebook direct from their browser. As it turns out, the browser never really caught on, and while the company tried to rebuild as a mobile content aggregation service a la Flipboard, they weren’t really able to keep users engaged.

In a farewell blog post, the company said that all of its apps will be shut down on August 31. Users can export their saved items as bookmarks and their feeds as an OPML file which can be imported into another RSS reader.

Under the direction of Marissa Mayer, Yahoo has been going on an acquisition spree, picking up a number of companies in the past months, including Tumblr and contact-organization company Xobni.

It’s unclear yet what plans Mayer has for the Rockmelt team, but a blog post from Yahoo VP of Social and Personalization Mike Kerns and Adam Cahan, Yahoo’s SVP of Mobile and Emerging Products sheds a little light on how Yahoo views the potential integration between the two companies.

“The parallels between Yahoo! and Rockmelt are obvious: we share a common goal to help people discover the best personalized content from around the web. We can’t wait to integrate the Rockmelt technology into our platform as we work to deliver the best experiences to our users in new and exciting ways,” Kerns and Cahan wrote.

Yahoo reportedly spent between $60 and $70 million on the deal.

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