Solving the Mobile Giving Puzzle

Best of all, many of the kinks have been worked out. There's never been a better time to start a mobile campaign.

As it turns out, the Red Cross used but one of several common methods to generate revenue from mobile phone owners:

• Text-message donations
• Text-to-voice donations
• Text-message warmers
• Mobile website donations
• App sales
• In-app sales
• Sponsored apps

Here's a look at how they work.