Use them as a brand building tool. Creating a strong online brand presence is crucial but, given the sheer number of companies on the web, chances are high that someone has already registered the domain you want. Companies looking for an is easily searchable URL that resonates with their target audience can get more creative with these new domains.
Read more here: http://www.entrepreneur.com/article/236398.
Register your new .WIKI domain name with the World's Largest Registrar - GoDaddy.com