I have been working with Volsor for half a year now, and I am quite satisfied with their conditions, including the high conversion rate. They specialize in the now popular microcredit market and work in three countries so far: Spain, the Czech Republic and Poland. In general, at the moment most profitable to work with the Czech Republic. And I think it would be much more convenient and profitable if the price per lead would be put in the cash equivalent of a fixed percentage of the total amount of the request. From the pluses - this is a detailed statistics for analysis, as well as the ability to receive payments on Webmoney.