O'Reilly Media, the publishing company behind the buzzy Web 2.0 conference, is raising money for a new round of tech investments. Not sure whether this has been reported somewhere already, but O'Reilly execs were pitching the fund at last week's Web 2.0 event. AlphaTech Ventures, in which Tim O'Reilly's company is the main investor, is thought to be raising $25m. It's good timing. The current fund had a small investment in Pyra Labs, maker of Blogger. It was one of Google's first acquisitions, when the search engine was still a private company, so O'Reilly rode up the company's share price after IPO.

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