ToyTalk, a San Francisco-based family entertainment firm, has raised $15 million in funding in a round led by Khosla Ventures, the company said in a blog post on its site. Other backers included previous investors Greylock, Charles River Ventures, True Ventures and First Round Capital. According to the company, the capital infusion will be used to expand its engineering and production teams. In addition to the funding, Samil Kaul, a partner at Khosla, has been added to ToyTalk’s board of directors. To read the announcement, visit here.