Geolocating your users can create a better experience, but it can also be used in devious ways. For example, cathysteeth.com claims to have a cosmetic dentistry solution discovered by a mom. And wouldn't you know it, Cathy lives in your home town. And your home town.
So and So is now following you on Twitter. Who? How did they find me? Why might I want to follow back? That's been a common bit of internal dialogue for me lately. Often the answer lies in our mutual friends or followers. Social networks like LinkedIn and Facebook make this easy. Not so with Twitter, which is why I was excited to find Intersect.