Have you seen ZoomInfo yet?

They say they have profiles on more than 37 million people and 3.5 million companies are you one of them? If you have a social networking or professional networking profile on the web you pretty soon will be.

There is also 123people who say they are "....a people search engine that looks into nearly every corner of the Web to help you find information on everyone you (want to) know."

Still even whilst some people are collecting data on you others are offering you the chance to see what's there - such as Garlik who reckon they allow you to "take control of your personal information and monitor your personal information online".

All worth looking into.