So the market for race registrations (i.e. road races, triathlons, etc.), camp registrations, and other active event registrations is dominated by Active.com. They offer a set of solutions, but from having used it...well...the bottom line is that someone could do a lot better.<p>They charge $3 per registration they process (so their gross margin is on the order of $1.5 - $2 per registration, which ends up being quite a lot of money when you take into account that many marathons have 10-20K runners.<p>I'm thinking about creating a dead-easy, on-demand registration system and pairing it with either/or a) other event management tools, b) some sort of network for racers (e.g. create groups, share photos, review products, see stats, etc.).<p>Revenues would come from the registrations, as well as ads in the vertical (which I'm guessing have a relatively high CPC/M because of the fact that this demographic buys gear quite often).<p>Thoughts on the idea? Anyone interested in building this with me?