Ode to Balloon Help
http://www.usabilityprofessionals.org/upa_publications/upa_voice/volumes/2004/August/balloon_help.html

Cavanagh, Thomas B.
Usability Professionals Association
2004

Abstract:

Perhaps we should look to the simplest elements of usability for inspiration. Perhaps it's time to recognize the contribution of a single humble helper. Yes, it's time for an ode to Balloon Help.