* There's a whirlwind introduction in my TEDx talk (http://mappin.es/TEDx), and I've published a survey paper on the topic (http://personal.lse.ac.uk/mackerro/happiness35000ft.pdf).

* I'd highly recommend the transcripts of 3 lectures by Richard Layard from 2003 (http://www2.lse.ac.uk/publicEvents/events/2003/20030106t1439...). They're what got me interested in the area.