I came across this awesome site while reading Fishprincessdesigns blog...and it is one of the best marketing / pay it forward ideas I've seen!
It's called the "Sneak Attack" and it's the brilliant idea from The Handmade Movement. Basically, THM schedules an attack time and chooses a specific shop that hasn't had very many sales yet. Then, scores of Etsians go to this shop and make a purchase on the same day! Can you imagine what an AWESOME surpise that is for the unsuspecting shop owner? I know I'd be stoked! Seriously, click on the link above and check it out. Kudos to The Handmade Movement for coming up with such a great idea!