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What to Watch on Wall Street This Week

From the launch of a new online music service to McDonald's checking in with its quarterly numbers, here are some things that will help shape the week on Wall Street.

A Short Guide to Understanding Bitcoin

The bitcoin market is full of risks -- risks that may make bitcoins worth as much as a foil-wrapped piece of chocolate. Here's what to know about this digital currency.

Living Without Credit Cards: She Made It Work, and You Can Too

Every time you make a plane reservation or rent a car or pay for concert tickets, you're asked to provide a credit card number. Liz Smiley provides a debit card number instead. Smiley has lived without a credit card for more than four years, and she doesn't miss it a bit.