Zynga now generates more than 90 percent of its revenue from mobile games and just 10 percent from its legacy Facebook desktop games. And that helps the company meet its own targets for growth better, as mobile is growing far faster than the shrinking web business.

Zynga beat expectations for its second quarter ended June 30 thanks to strong performance from mobile versions of Words With Friends, Zynga Poker, and the racing game CSR2. Most of the increase in both revenues and bookings came from live services, or the use of special events, new features, and other tricks to keep fans coming back to their favorite ongoing games.

The company has transformed itself to 90 percent mobile revenues. Facebook desktop web games were once the biggest part of the company, but that’s now just 10 percent of revenues. That business fell 16 percent from a year ago, but CEO Frank Gibeau said in an interview with GamesBeat that the company continues to manage it because it has some very loyal and longtime customers.

Above: Zynga has added new Ferrari models to CSR2 in honor of the car maker’s 70th anniversary.

Image Credit: Zynga

Gibeau refers to Zynga’s three big games — Words With Friends, Zynga Poker, and CSR2 — as “forever franchises,” and they’re living up to the notion that they can keep growing revenues. CSR2 had its best quarter ever, two years after its launch, thanks to manufacturer events such as a BMW event, as well as tie-ins with the Fast & Furious franchise.

Zynga’s overall revenues were $217 million in the second quarter, up from $209.2 million a year earlier. Bookings were $233.9…