Dear Sir or Madam,
Our potential customer would like to start b2b web portal similar (but smaller) to Getafreelancer (or slovak [url removed, login to view]).
There will be catalogue of service providers with categorisation of offering services, buyers will post demands. Demand will be e-mailed to specific providers...
We need ready solution (implementation of completed (or almost completed, similar) open source (preferred) or proprietary solution).
Let us know, what kind of additional info do you need at the start.