SF-based ShareThis, a provider of tools to help users easily share content, has raised a $15 million second round from Draper Fisher Jurvetson. The funding brings its total to $21 million, as it raised $6 million last year from Blue Chip Venture Company, Illinois Ventures, DFJ Mercury, Queen City Angels and RPM Ventures. The company offers a button that can be placed on a webpage or in a user’s browser that a user can click on to share content quickly with a friend. It claims to be growing at a 50 percent clip per month — although there’s no mention of the size of the base. Funding will go towards general promotion of the service. Release.
— David adds: In a brief conversation with Tim Schigel, ShareThis