Social Media for the socially excluded

I had a meting today with an organisation - HeartsnSoul - who want to create a community web site to bring people with learning difficulties together with potential employers. They want to encourage use of personal blogs for their users and have a virtual meeting place (e.g. forum) where their users can ‘meet' potential employers.

I am looking into the issues and dependencies for providing all this through our existing CoP platform , but I think the interface design requirements may exceed the available budget and there may be implications for the future management and maintenance for what would have to be a separate bespoke development.

I was wondering if anyone had any experience with designing, developing or using similar sites (i.e. with heavy emphasis on accessibility and usability), blending social media applications with a simple and intuitive front end design? Or perhaps anyone with experience in this whole area of bridging the digital divide for socially excluded groups. If so, I should be very grateful if you would contact me.