1In a recent post, we talked a bit about concerns that the consumer attention span may be drifting away from email in favor of other communication channels, particularly social media. Some people are very alarmist about the trend, but as we pointed out, while email use is in decline for certain demographic segments, it’s actually increasing among others:According to the measurement firm comScore, in 2010 email usageactually gained 22% in the 55-64-year-old....