Your site name and site description are both important areas of your wiki settings. They both directly impact the way your site is listed in the search engines.
Site Name
Your site name is used to identify your site in the search engines. For example, the Mythbusers wiki has uses the site name, which follows the name of every page on the site in the search listings:
The best site names tend to be short and include at least one important keyword that describes your site.
Site Description
The site description also shows up in the search engines.