Zynga has announced that they are looking to extract tax breaks from the city of San Francisco. They want a deal similar to what the city offered Twitter to remain in the area; they say they will consider moving their HQ otherwise.

We are looking at a variety of options to grow the company in the Bay Area, and as part of that, we are in serious discussions with the city, a Zynga spokesman said in a statement. It would be premature to comment on those conversations at this time. We are encouraged that the city is engaging with us on this issue.

Source: MarketWatch