The overall best internet search engine, Google captures and caches billions of sources of information.
Spokeo is a social network aggregator web site that aggregates data from many online and offline sources (such as phone directories, social networks, photo albums, marketing surveys, mailing lists, government censuses, real estate listings, and business websites).
Unlike a typical search-engine, Pipl is designed to retrieve information from the “deep web.” PiPl looks through searchable databases and extracts facts, contact details and other relevant information from personal profiles, member directories, scientific publications, court records and numerous other “deep-web” sources.
Openbook lets you do a live-search of facebook® member status updates in real-time by searching people's facebook posts. The results are from public status updates where the facebook member has their settings public.
For the best results, use parentheses to make your search specific, and then remove if no results found. Use parts of usernames / addresses as shown below. Read the content of web pages found, they may lead to other usernames / addresses to expand your search.