A nifty site that lets you check before registration if a desired username has already been registered on that site. Becomes especially handy if the site makes you fill up all the registration details again in case the chosen username already been taken.
Username Check currently looks up 68 sites & promises to add more. With more and more sites using AJAX-embedded registration pages, this function can often be done while registering on the site itself without making use of this site.
An irritant was that looking up username means looking up all the sites it supports. Though not much time is taken, it would have been better if they could let the user selectively look up a site.
Nevertheless it could be helpful in deciding which site to sign up with, if there more than 1 site with similar features and service – you simply sign up with the site that has your desired username available ;).
Thanks Cool Chatbot