I hope it isn't a silly question but i have a question from another website wanting to exchange links with me. The site URL is straight forward Site URL www.mysite.com then the other URL is Link Back www.mysite.com/link-2/
As far as i am aware i would just put the first URL on my links page with the description of the site and they would do the same for me. I would just like an explanation of what a back link is please.