Google has quietly (secretly, one might say) invested somewhere between $100 million and $200 million in social gaming behemoth Zynga, we’ve confirmed from multiple sources. The company has raised somewhere around half a billion dollars in venture capital in the last year alone, including $150 million from Softbank Capital last month and $180 million late last year from Digital Sky Technologies, Tiger Global, Institutional Venture Partners and Andreessen Horowitz. The Softbank announcement was never officially confirmed by the company, however, and the Google investment was likely part of that deal as well.
The investment part of the deal closed a month ago or so. A larger strategic partnership is still in process.