Newgrounds is an American entertainment and social media website. Founded on July 6, 1995 by Tom Fulp, the site primarily hosts Adobe Flash animations and games, but also features a music-oriented page, along with an art portal. Tom Fulp remains the site's owner and still regularly produces in-house content. Newgrounds is the oldest Flash portal website, and is distinguished by its automated submission and rating system, as it is the first website in history to produce a fully automated user-generated content system.
Source: Wikipedia, "Newgrounds", available under the CC-BY-SA License.