With the data in a file you are also saving the page content (in a file). I don't see what difference it makes whether you're saving that content in a file or in a bookmark. (At the risk of stating the obvious, bookmarks are stored in a file.)
Even if this were possible (which, even if tinyurl supported it, would break most browsers) you would be effectively hosting your content on tinyurl.com. Again, this is no different from hosting the file on any of a zillion public data hosting services.