This is the first on-line tool for compo hosting, it is something I began about a year ago but I didnt work in it so much so I decided to release it 'as it was'. Try it please and if I see that ppl use it I'll continue the developement.
This is the description in the website: "Spectrum Music Competition is a music competition with an unique concept. There is three categories in the competition: Red, Green and Blue. Simply choose one of the three colours, and make a song inspired by it. You can also submit multiple entries, but only one song for each colour."
There are beautiful prices :-D !! Check it out!