I haven't used any of these following sites, but they may be of use to you: http://cofoundr.com/ http://cofoundr.com/ http://www.partnerup.com/ http://www.par

I haven't used any of these following sites, but they may be of use to you: http://cofoundr.com/ http://cofoundr.com/ http://www.partnerup.com/ http://www.partnerup.com/ http://collabfinder.com/ http://collabfinder.com/ (more designer focused)