Somehow, I missed Starbuck's “Tweet-a-Coffee" program when it debuted last year. Here's how it works:

This past fall [Starbucks] launched a new Twitter campaign called Tweet-a-Coffee. This campaign allowed customers to buy a coffee for anyone on Twitter by tweeting @tweetacoffee and the person’s Twitter handle. By doing this and connecting their Starbucks account to their Twitter account, a $5 gift card would be given.

Digital & Social Marketing Consultant Mike McCready just published a quick overview of the results of the campaign on LinkedIn, as well as a few reasons why he thinks the campaign was so successful. Number one on the list: people like coffee.

I'll second that. Small coffee with cream, please (@iandeming).