Want to do a check on someone just need to be extra sure that they are who they say they are?

Yes, you could just ‘Google’ someone, but that would barely be scratching the surface. Since most personal profiles, public records and other people-related documents are stored in databases and not on static web pages, most of the higher-quality information about people is simply "invisible" to a regular search engine.

Pipl is a free service which scans different websites and public profiles to collate a web profile about anyone you search for. I did a quick vanity search on myself, and it snappily managed to find social networks profiles, web pages, and a few quick facts about me - neatly summarized, and for the most part - pretty accurate.