Keeping an eye on this data is a way to target your advertising, or perhaps tell you when to make specific tweets offering extra bonuses or stretch goals. (inc.com)
We make sure to always hashtag location specific tweets, so that fans from Regina aren't bummed out if we're talking about a promotion that they can't access. (canadianbusiness.com)
These are popular at all of the BlackBerry events we attend and essentially broadcast specific Tweets to a large screen for everyone in attendence to see. (crackberry.com)