Internet Auctions like Ebay
I had seen the Vendio logo on many Ebay auctions so it is certainly popular. I had a lot of trouble finding their website because I was spelling it Vendeo and looking for that on Google brought up some really weird stuff.
Once I found their site I was in trouble. They offer LOTS of options. They even have a little program that questions you about your business activity and then tells you which of their products you should buy.
They are web based so you don't have to install anything on your own computer. I never got as far as signing up for their free trial. There were to many choices and their system seemed to comprehensive for what I am looking for. It would probably work better for someone who wants one system that does everything.