I built a simple web app check domain name availability built using the awesome things I have been experimenting with lately : Ruby, Sinatra, Hpricot and deployed on Heroku
It all started with a quick and dirty Ruby script to check for domain name availability:
Converting it into a web app was very easy using Sinatra and deployment to the Ruby hosting service / platform at Heroku is conveniently done via Git. The web app resides on Heroku at : http://domchkr.heroku.com The source code repository is available at Github.