Be Consistent With Domain Names

Domain naming is so important to your overall foundation, so as a best practice you're better off using sub-directory root domains (example.com/awesome) versus sub-domains (awesome.example.com). Some other best practices with domain names are:

• Consistent Domains: If you type in www.example.com, but then your type in just example.com and the "www" does not redirect to www.example.com, that means the search engines are seeing two different sites. This isn't effective for your overall SEO efforts as it will dilute your inbound links, as external sites will be linking to www.example.com and example.com.
• Keep it Old School: Old domains are better than new ones, but if you're buying an old domain, make sure that the previous owner didn't do anything shady to cause the domain to get penalized.
• Keywords in URL: Having keywords you're trying to rank for in your domain will only help your overall efforts.