Sigh Sound and (bowel) Motion

http://itre.cis.upenn.edu/~myl/languagelog/archives/002732.html

http://www.publicaddress.net/default,busytown.sm

http://adweek.blogs.com/adfreak/2005/11/the_age_of_siso.html

http://notetaker.typepad.com/cgm/2005/11/sisomo_misisomo.html