I just finished reading a book by Danny Wallace called:
The true story of a man who started a cult by accident
I highly recommend reading this book. Not only is it highly amusing and entertaining but it also charts a quite incredible journey of one man's obsession to honour the memory of a dead relative and descibes his own awakening along the way.
I won't divulge too much more information except to say that you can check out the related website at www.joinme.info