Online stalking has gone programmatic. People search engine Whoozy has a person search API. With it, you can get results for a name from social networks and blogs, in addition to standard search engines.
According to Ben Dowling, founder of IPInfo, an API provider specializing in IP-based geolocation, the key to success is staying customer-driven. Of course, when your organization is an API provider like IPinfo is, "customer-driven" is synonymous with "developer-driven." Dowling explains.