I chipped in for a few months to help get a promising, Boston-based startup off the ground in a difficult funding environment.
I spent most of my time split between recruiting new merchants to the platform (12 in the first 30 days) and trying to market our deals on a shoestring budget.
CrowdSprout was an early attempt at group-buying. We were at it before Groupon had exploded, so both sides of the market required a great deal of education.
We got off to a decent start, but funding fell-apart when the economy tanked at the end of '08; we ran on fumes as long as we could, then shut down :-(