I am in the middle of creating a set of freebie pages that are organized by subject. If you would like to be part of this and contribute freebies as a source of marketing, feel free to fill out the google doc below. It works best if you are a blogger with an active blog to help cross-promote others, but at the very least you will need a Facebook Fanpage that features the name of your store. The websites I am creating are made using Blogger. If you aren't familiar with Blogger, you can create one for free and play with it to learn the ins and outs of posting on them.
Here is the link to my google doc which helps me gather and organize information. If you would like to be a part of this sales endeavor, fill it out and I will get back to you!
Also, we have a fanpage on Facebook that you are welcome to join also, where we will share websites, activities, and other blog posts!
http://blog.bestpractices4teaching.com