MyStalk

DatingAnyone allows people to track the dating status (e.g. single, swinger, in a relationship) of particular MySpace members, and be notified if and when it changes.

Their bot trawls only publicly available information, the same as would be available by browsing the MySpace Web interface. The MySpace profile also includes smoking & drinking habits - how long before the respective lobbying organizations for these two industries start to harvest and leverage the availability of this info - the demographics are right.