Sure, instant messaging and social networks are the communication channels of choice for the 18 to 25-year-old set. But many are highly receptive to permission-based commercial e-mail, according to research from marketing services firm Epsilon. WHAT TYPES OF OPT-IN E-MAIL OFFERS WOULD THEY BE OPEN TO RECEIVING MORE THAN ONCE A DAY?
| Online merchants | 34% |
| Entertainment | 32% |
| Sports | 28% |
| Offline retailers | 26% |
| Electronics | 21% |
| Telecommunications | 21% |
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