Here is some example test with URLs from mattheworiordan.com. Any of the URLs which are prefixed with www. should become URLs such as www.mattheworiordan.com/path_name.html And an explicit URL such as http://www.mattheworiordan.com/ should become a URL. Emails such as matt@google.com should become links to. Or email mailto links such as mailto:matt@google.com should become links to. And of course lets not forget querstryings such as http://mattheworiordan.com/?test-param=true_or_false and paths and anchors such as www.mattheworiordan.com/home#index