Webpage mood tracking

Yesterday was eyetracking of webpages, now it's mood mapping?!

"Dutch researcher Maarten de Rijke and his co-workers Gilad Mishne and Krisztian Balog have developed a new programme that can trace and explain significant changes in mood patterns on the Internet. MoodViews is a collection of instruments that maps the mood of bloggers as they write their message."

Supposedly over new years their "drunk" scale went way up.