P2P payments

How He Earned 4 Million Airline Miles by Buying Dollar Coins

Rewards cards can be a great way to earn free cash -- if you use them correctly. Brad Wilson, founder of deal site BradsDeals, took that idea to its logical extreme, raking in millions of points for free, and now he's sharing his techniques with us.

AmEx Debuts Mobile Payment System

We told you last month how Visa plans to roll out a system that would let people pay each other without cash or checks by using their cell phones....