How many American E-commerce sites are there currently on the internet?

Question

I am writing an article for UK readers about the advantages of shopping online via American e-commerce sites. I'd like to know exactly how many there are.

It'd also be useful to know the number of UK e-commerce sites??

Answer 1

33195 e commerces according to his link

Answer 2

The government does not track the number of ecommerce sites in the US, but the only sales as well as sales of ecommerce as a percentage of retail sales

Here's the US Census Bureau E-commerce Statistics

http://www.census.gov/mrts/www/ecomm.htm...