What's the point of a trackback URL at the end of my post: http://www.hannahmontanazone.com/news/miley-cyrus-get-a-smart-car so instead of having that link it's http://www.hannahmontanazone.com/news/miley-cyrus-get-a-smart-car/trackback When I click on the latter URL it still takes me to the first link so what's the point of having the /trackback added to the end of it?