Given your interest in matching programmes this one may be of interest

MySociety  http://www.mysociety.org/helpus/
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mySociety is built on volunteers.

mysociety volunteers

Some of them are super-powered, like Tim, who works on PledgeBank. Tim is obsessed with translation – he coordinates an international team of volunteers who keep the site running in over a dozen languages. Speak another language? Help him (and us) out.

Other volunteers are less hardcore. Take Sally. She matched up one piece of Parliamentary video on TheyWorkForYou to one piece of debate text, and that’s it. It took her about a minute. But both Tim and Sally together make contributions that helps mySociety try to improve our democracy, and help hordes of people using the sites they helped with, most of whom they’ll never meet.

So, I want to volunteer, but it just seems too dratted hard and intimidating!

more at MySociety  http://www.mysociety.org/helpus/