If you don't have the twitter account, facebook page, linkedin, ... to go with your (domain) name, it's pretty useless to register the domain. People expect a package, not only a domain.
That is why tools that do it all (like for ex. http://www.namechecklist.com/ ) are in my eyes far more important then any domain checking tool, you don't want a domain, you want the whole package. It makes finding the correct name harder, but in general it's that name that has to be as unique as possible. It's always better to think about things like this is advance, it's harder to change afterwards...
