I poked around Account Maven and found it to be similar to a website I work for called Salesconx (
www.salesconx.com). The difference between us and Account Maven is that users buy and/or sell quality contacts to each other on our site. Our site is free to use and you only pay if and when you choose to purchase a contact.
We're based in the USA and are not international (YET!) but keep checking back for updates on that!
Check it out and let me know what you think!
-Gina