What would mixing tennis and webdesign be... the answer is :
layer tennis !
The concept is akin to a template contest, except this is happening "live" with time constraints and interresting rules :
Two artists (or two small teams of artists) will swap a file back and forth in real-time, adding to and embellishing the work. Each artist gets fifteen minutes to complete a "volley" and then we post that to the site. A third participant, a writer, provides play-by-play commentary on the action, as it happens. The matches last for ten volleys and when it’s complete, everyone visiting the site votes for a winner.
Check out for example
this match from September 28th :
Shaun Inman vs
Kevin Cornell
Commentary by
John Gruber
Nice talented people, uh ?
Anyway... the ideas emerging on the internet never cease to amaze me

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.: COO - Commerce Guys - Community Driven Innovation :.
MODx est l'outil id