I discovered two new things today. Not big things, mind you, but very helpful. 1. Typing '@' in a Facebook comment stream immediately brings up your friends list and starts filtering your text as you type 2. Selecting text from an error message in Adobe Flex and hitting right click brings up a menu that has 'search in google' as the first option. Both are great examples of observing user behaviour after the product has shipped and using those observations to drive improvements to the product. Most user testing occurs during the design cycle (in agile) or after the code has been written (lets face it - in waterfall development) - but rarely post production. In the Facebook example, people have been typing '@' to direct a comment towards a specific friend in a discussion thread. The use of '@' in this way carried over from Twitter, at least that's why I started doing it. In the Adobe Flex example, people getting error messages would sele...