PC World has a marvelous article on the twenty most annoying tech products ever made.
The number one slot is appropriately awarded to the carpet bombing of free AOL CDs, estimated at 1 billion discs distributed over a period of 13 years.
Others on the list that particularly deserve their place in the hall of infamy: Norton and McAfee security suites; RealNetworks RealPlayer (with the unforgiveable blinking icon); and Apple Quicktime, with the startup process that can’t be killed.