http://ipinfo.info/ netrenderer/index.php (online ie testing)
http://www.viewlike.us/ (check ur website in different resolution)
http://quirktools.com/ screenfly/ (check ur website in different resolution)
http://quirktools.com/wires/ - wireframes
http://mattkersley.com/ responsive/ (Responsive design testing)
http://www.viewlike.us/ (check ur website in different resolution)
http://quirktools.com/
http://quirktools.com/wires/ - wireframes
http://mattkersley.com/