With so many social networking sites available, it might be handy to have the same username across all the sites. Ud.com is a nice and simple online service which allows you to search for username availability across different popular social networking sites and also check for domain name availability across multiple generic as well as country level domain names. You can also check for trademark availability for names.
You can enter the desired username and the service will check for top 10 generic domains as well as top 10 country level domains. It also searches in social sites like Facebook, Twitter, MySpace, LinkedIn, eBay, Flickr etc.
The service is pretty fast when checking for the availability, although we would have liked this tool to cover many more social sites when checking for availability.
Hi nirmal,
another service like that is http://namechk.com
Its more specialized on social networks.