Almost all the domain registrars have their own domain name suggestion tools, but there are basically two problems with them. First, the domain name suggestion tools are self promoting, which means that you are shown only those domains who comes at the cost of high price. The tools will randomly match common terms with your keyword and provide alternate domain name suggestions which might not relate to your business plan at all.
Similar to the dedicated web hosting service, but the user owns the colo server; the hosting company provides physical space that the server takes up and takes care of the server. This is the most powerful and expensive type of web hosting service. In most cases, the colocation provider may provide little to no support directly for their client's machine, providing only the electrical, Internet access, and storage facilities for the server. In most cases for colo, the client would have his own administrator visit the data center on site to do any hardware upgrades or changes. Formerly, many colocation providers would accept any system configuration for hosting, even ones housed in desktop-style minitower cases, but most hosts now require rack mount enclosures and standard system configurations.
5 Things You Need to Know About Web Hosting