I'm curious what searches have you done to find such data. Companies like Netspend (just acquired this week by TSYS) and Greendot exist almost exclusively to se

I'm curious what searches have you done to find such data. Companies like Netspend (just acquired this week by TSYS) and Greendot exist almost exclusively to serve this market. American Express has their own offering called Bluebird card to compete in the same market. There are lots of articles discussing these companies and the target market of the "unbanked" when looking for info on these public companies. The only reason I hesitate to post links to specifics is because I'd rather not taint your approach to finding such information, but it is pretty easy to find, if you are to search.