By Damian Joseph
Ads used to be confined to a handful of places such as prime-time TV and highway billboards. Now commercial messages are so ubiquitous that people learn to block them out. What's an advertiser to do? Create something so attention-grabbing that it's impossible to ignore. The following sales pitches use new technologies, viral qualities, or in some cases, classic inventive thinking to cut through the cacaphony. Unlike most ads, these are hard to hate.