I discovered fflap at the weekend and I think it's quite a cool little tool!
It allows me to promote my eBay listings from both of my eBay selling ID's by adding them to twitter or facebook very easily.
If you refresh the page after you've "fflapped" you can see how many hits your page got.
I've got a free account which means I can fflap 10 items every day but there are other options for those who want to "fflap" harder!
My fflap.com Member Page
