Where to look for car sharing?

I'm travelling from the uk to wacken and i know its easier to fly there but i was just checking my options. Is there anyone planning to drive there and has enough room for three people! cheers

 

www.mitfahrzentrale.de, or www.mitfahrgelegenheid.de, www.hitchhikers.de or www.drive2day.de (may not be in English, but I don't know)

Or at the W:O:A Mitfahrerzentrale (carsharing point) but it is not online yet.

 

where in the UK

 

www.idontliveinthe.co.uk!

 

and we're grateful