Buzzfeed, which tracks the most shared content on the web, has picked up $15.5m as it looks to break into original reporting.

Media tracking website BuzzFeed secured $15.5m in series C financing on Monday from a pool of investors including corporate venturing units belonging to Japan-based conglomerate Softbank and media conglomerate Hearst Media.

Softbank Capital and Hearst Ventures were joined by venture capital (VC) firm New Enterprise Associates, which led the round, as well as venture firms RRE Ventures and Lerer Ventures.

Softbank and Hearst have been investors in BuzzFeed since its $3.5m series A round in July 2008, while additional…