ur web identity., secure it :) - part2

After i posted last time about usernamecheck.com, realized now, many such handy portals are available.,

You never know whean you need one for yourself, or your product..
And sites like foursquare,tumblr popped in from no where.,

So, a quick look at few of 'em..

namechk.com - sleek, and uber fast.. 

lists hell lot of portals, social sites.

ud.com - more glossy., faster. 

few social-sites/portals, and lists domain names too..

Few others like namechecklist.com,  knowem.com looks good, but appears redundant, if you look after usernamecheck.com, namechk.com, ud.com..