Great writeup on Mashable about Sparked yesterday.
Check it out here: http://mashable.com/2012/05/07/sparked/
Here’s a snippet:
Big Idea: Sparked is an online-only volunteer hub for people to donate their talents to non-profits, as well as an engagement tool for businesses to engage and incentivize employees to contribute to volunteer causes.
Why It’s Working: Users can donate expertise and skills instead of money, and make time commitments according to availability and interest level