“Programming Collective Intelligence” (ToC); read online … see write-up at O’Reilly
One slight sample of the ToC:
“The term collaborative filtering was first used by David Goldberg at Xerox PARC in 1992 in a paper called “Using collaborative filtering to weave an information tapestry.” He designed a system called Tapestry that allowed people to annotate documents as either interesting or uninteresting and used this information to filter documents for other people.”
Sounds a lot like what I’ve been calling “group discernment”!
Also of interest: RoboHelp7 from Adobe