Ever heard of it?
I hadn't either until today when I read a post here: Asterope Bead Creations Blog
The idea is that it will help people find blogs that they like. You register and then put a button on your blog. Every time someone clicks on the button it takes them to Picket Fence Blogs and counts as a vote for your blog.
I registered - here is my button:
Register your blog too and give it a go: what do you have to lose? ...............Oh and don't forget to click the button.