Is there a way to find internal links to a specific web page? For example, for a page called mysite.com/about can you determine any other pages that link directly to this web page? The goal is to determine all of the webpages that exist in mysite.com that have a link to the about page.
You may want to look at the Views module (pretty sure you already have that module enabled ...), which includes a Backlinks view. After you activate this view, a What links here-tab is shown on each node.
So on your about page, it'll list all of the pages that have a link to the about page (as in your question).