I am looking for companies for my merchant account online business.Which are the best and most cost-effective enterprise?

The low cost ones are usually the banks. Check out your bank if they offer merchant account and their tax rates. Costco merchant account is also very competitive if you are a member here http://www.novainfo.com/costco/index.asp is a website that compares http://www.infomerchant.net/merchantaccounts/comparison.html various online merchant accounts

How exactly make money online in the form of residual income?

After a few chances of residual income online business before, I need your expert Instructions start with reality and above all ensure just that I really make money out of him. Thank you in advance for your unselfish input and advice. I look forward to learning from you.

They are all either fraud or spam emails, better to stay away from all this BS.