When I found Shawn Achor's excellent TED talk, The Happy Secret to Better Work, I looked for his website and found GoodThink, Inc. GoodThink is intended to bridge the gap between academic research about happiness and positive psychology and the real world. The site has terrific resources, including links to Achor's books, and books he recommends.
Just for fun, as well as some creative inspiration and insight, take a look at GapingVoidArt. And, the Gaping Void site is focused on changing business culture. There's a lot to check out, including a page where you can download High MacLeod's book, How to Be Creative. (As you can guess, I love #6: Everyone is born creative; everyone is given a box of crayons in kindergarten. But don't stop there, look for the ideas that especially strike you.)
The Holstee site is focused on bringing people inspiration and meaning. Their goal is to help people live more mindfully, in their personal and work lives.
Their thoughtfully designed products are quite beautiful and I am particularly moved by this poster — their manifesto. It was written as a reminder of the aspects of life the Holstee founders truly value. (The poster is letterpress printed, and I recommend the 3-minute video that shows how this wonderful, classic printing technology results in the special posters they sell.) I also recommend that you check out the MyLife section of the site, to read stories people have submitted about how they've been inspired to live their dreams, how they have faced adversity, and how they are exploring the world.