When you set up your site one of the first things you’ll want to do is set up your Permalinks. That way your site will have meaningful text within all of your web addresses. This will be good for your users and it will help the master we all serve – Google – understand what your site is about.
But a word of caution. Changing the link structure of your site can have dramatic consequences as noted in “A Simple Guide to Changing Your Permalinks Without Breaking Your WordPress Website”.