http://www.n2yo.com/ (http://www.n2yo.com/)
http://www.nlsa.com/nfw.html (http://www.nlsa.com/nfw.html)
Demo site is working but the purchase site appears to be down.
http://www.heavens-above.com/ (http://www.heavens-above.com/) (includes a mobile site)
(http://www.heavens-above.com/orbitdisplay.aspx?icon=iss&width=300&height=300&satid=25544)
http://www.isstracker.com/ (http://www.isstracker.com/)
http://www.satflare.com/track.asp#TOP (http://www.satflare.com/track.asp#TOP)
View >from< the ISS.
http://iss.astroviewer.net/ (http://iss.astroviewer.net/)