What could be more Web 2.0, than including a slide show about web 2.0 using the Ruby on Rails powered SlideShare.net
When looking for a good example of a map mash-up, my first thoughts were real estate and business yellow pages. This is until I found MappyHour ! A site than any drinking consultant would love to land on. Combining the need for consultants to find a place to wash down a few pints with the Google mapping engine is pure genius. Let's hope it takes off.