What is it? As they say on their page:
Sparked is online volunteering for busy people. At Sparked, we’re driven to make volunteering convenient, fun, and full of impact. We call it “microvolunteering” because you can do it whenever and wherever you have time. And now, with Sparked Enterprise, you can get your whole office volunteering together!
I’ve been doing it for a few months now and I love it. I even got a write up on their blog for the work I did with their API! (Taking our API for its first Spin | Sparked Blog). I highly recommend you check them out and start microvolunteering yourself. How? Go here:
Sparked.com – microvolunteering by The Extraordinaries – Team Volunteers
Smart People I Know 