I was net-researching the discipline of positive psychology, and found the website of David G. Myers, which is a veritable gold mine of information on being happy and many other issues besides.
I especially enjoyed the list of 10 suggestions for a happier life. Basic stuff, but still true.
Positive psychology was defined by Martin Seligman (I wrote a little about it in a previous post), and there’s also a review of his book on the subject Learned optimism