Vermicomposting, worm bin, composting with worms community and forums
For anyone that wants to sell worms and worm products online, here's a site that seems to work for that kind of thing. I am not a customer, but I know some who are. It runs about $24 a month for a basic site to $99 for a full-fledged e-commerce storefront.
Or you can start a blog for free on Blogger.com (a Google company) and use your Pay Pal account to collect payments. That would be the low cost solution. I've used this approach for two years and besides the small processing fee Pay Pal keeps, it's abosolutely free. I like free.
But, if you have lots and lots of different products, a purpose built e-commerce store front might be better.