Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
Palaround - Meet people you should be friends with.
Bulk Whois API - Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, top notch support, and more.
Babble - A more personalized social network
Whoisology - Connected database of whois records and whois history