Twitch, which was started by the people at Justin.TV, has raised more money to continue building an online video platform where viewers can watch live footage of videogames being played. The experience can be analogous to watching a professional basketball or football game on TV, especially as videogames increasingly become a rival to other major forms of entertainment. The $15 million round was led by Bessemer Venture Partners; Alsop Louie Partners and Draper Associates also participated. The capital will go towards hiring more engineers to continue building out its platform and improving quality. Read the full story at All Things D.