Commandline Challenge - Test your command line skills
Domainz.io - Premium domains, for not so premium prices
Prompt - Prompt provides fully-integrated writing education solutions, combining instruction, curriculum, and feedback. We support educational institutions, companies, and individuals.
DomainWatch - Domain Monitoring Made Easy
Cwiki - A Command line interface for searching Wikipedia!
dofo.com - Domain search platform Dofo.com gathers all registered (350 million) domains of the world in a single place. Dofo also brings together all the domain names that are on sale, provides useful features, all completely free.