AUSTIN - Fox TV Studios is using its new digital studio 15 Gigs as an incubator for new types of content that might also make the leap to the TV, said Rachel Webber, director of digital strategy and development at Fox TV Studios. We caught up with her at SXSW in Austin this month, and she talked about the types of partnerships 15 Gigs is pursuing. The company has partnered with the scrappy Web studio Black20 and also the popular online destination MyDamnChannel, both of which have performed well online. The goal is to find the Web stars that can play well online but also in other venues, she said. It's a model that other networks and media companies have pursued in the past, but 15 Gigs has the benefit of hindsight since it's starting down this road later when winners and losers have begun to emerge. Daisy Whitney, Senior Producer Less