yasni scours social networks, the web, blogs, Amazon wishlists and its own records for whomever you seek. If your search is fruitless, you can swiftly create a missing person ad.
FreshAddress.com links old and new email addresses, but its always up to date database can also be searched for other criteria.
Spokeo's reverse email search shows you the name, photos, videos, social networking profiles, blogs and non-email contact information behind an email address.
With most comprehensive coverage in German-speaking Europe but working worldwide, 123people.com scours the web, phone books, people directories and social networking sites for people and their addresses.
Hand MyLife a name and approximate age, and it will often find the person you seek. After registering, you can see their details, too.
The space to meet friends on the web is heavily populated. The chances are good you will find and be able to contact lost friends through Myspace.com.
You can find everybody on Facebook by college, company, school or name.
After becoming a Plaxo member yourself, you can search — and contact — others in their directory.
Email Finder finds more than email addresses. It looks up the person behind an email address, in fact, with a detailed profile — for members only.
After registering yourself (which puts you in the directory), Reunion.com turns up comprehensive results that get you back in touch with people you knew. You can also search by school, for example, and find out who's looking for you.