Hotmail: Circadian_clock@hotmail.com (there is an underscore there that gets blocked out by the underline)

Facebook: http://www.facebook.com/pages/Circadian-Clock/145077068873283

Tumblr: www.circadianclock.tumblr

Twitter: www.twitter.com/Circadian_Clock  (Another underscore)

Myspace: www.myspace.com/circadianklock