Stephanie, a friend of mine, gave this sermon in Second Life. I wasn't able to be in-world to hear her, and I wish I had. The title pretty much sums up the topic:
UUtopia Service and Sermon 9/8/2011 - Positive Thinking and The Law of Attraction: How They Are Used to Oppress Individuals and Perpetuate Evil
I guess the Power of Wishful Thinking Errors is everywhere.