Hmm, nothing major comes to mind. I suppose I can think of a couple. Reading a couple "dating" ebooks kinda changed my perspective on my life. I used to think I was absolutely hopeless with women (I was depressed, etc). I downloaded a couple of ebooks, DYD and Mike Pilinski's "Without Embarassment". The first 'dating guru' thing I ever read was W.E. and it had a real effect on me. It opened my eyes to a lot of things, made many things seemed like possibilities that before felt like impossibilities, and led to a whole bunch of other reading material. Maybe it was just the kick in the ass I needed.
The other life-changing experience was going on my trip through europe last year. As an american, I think it gets pretty easy to view america as the only place you'd want to live. Not that the rest of the world is uncivilized or inhospitable or anything, but you just get so used to it, without the luxury europeans have of being able to hop on a high-speed train and travel to another conutry in a matter of hours, that you just can't imagine living anywhere else. Spending a couple of months in europe really made me feel a lot more comfortable with the idea of living my life outside of the US, which is something I plan to do very soon (in Japan). I guess it's just something you have to experience.