For those who suffer from the blues / depression / bi-polar disorder / mood swings etc. a well laid out FREE site to chart your daily state through a clever 20 flash card system and record the results on a graph. Tracking your daily scores can help you work out what triggers lows and highs and then improve the situation. You have the option to send the results to a friend. The site is extremely well reviewed in the press (see the 'News' and 'Testimonials'). It certainly helps me fight off the 'black dog'!