SF-based Mochi Media, a firm that offers tools for flash game developers, has raised a $4 million first round from Accel Partners, according to VentureWire (via PE Hub). The company offers a number of services, including MochiAds, an advergaming network, MochiBot, for traffic analysis and MochiKit, for rapid development. It also offers a community site for developers. Co-founder Jameson Hsu was previously at interactive design firm WDDG.