Free check if your username is available everywhere

If you’re like me, who are often online and a member of different networks, I can recommend the excellent service User Name Check. It is a simple but very useful service that allows you to search for available user in a wide range of social networks and Web services. If you, like me, would like to have the same username on all social networks you are a member, so is the User Name Check very good.
The service could not be easier to use. You enter the username you want to check and then wait for it to check availability at each site.
Your username, you may be the same everywhere, but do not forget to have different passwords. A common security issue is to select the same at all sites, which is not particularly smart. In order to manage your different passwords there are several smart freeware, we on Sundream Estate using KeePassword Safe and we are very pleased with keepass