Los Angeles-based Break.com, a user-generated video sharing site at 18-48 year old males, said today that it has partnered with Showtime Networks to cross promote Showtime's series WEEDS. Break and Showtime will launch a joint promotion that invites users to submit their own video clips. Those clips will air on Showtime in co-branded spots, as part of the promotion for the next season of the series. Terms of the deal were not disclosed.