Digital content licensing startup GumGum has raised $2.6 million in funding, according to a recent SEC filing. GRP Venture Partners led the round, with participation from previous backer First Round Capital. The Los Angeles-based startup has reportedly raised approximately $3.8 million in total. Founded in 2006 by former Mojungle CEO Ophir Tanz, GumGum provides an analytics and monetization platform for content online. GumGum has developed two licensing models: Pay-per-use allows publishers to license content on a CPM basis; and Ad-supported subsidizes the licensing revenue through advertisements.