Music (Not lyrics, but the music itself) motivates me... The way it was put together, the technical detail, the way that combinations of sounds can alter ones emotions is an art. It is one that inspires me like most other forms of art, it's just that this form inspires me more than anything else in this category.
Seeing improvement somewhere else is also a motivator for me... When I see something improve, there is just something about it that makes me want to improve as well.
I am very motivated by responses to my actions...
I am motivated by positive response. I freaking love it! When I work on something or say something, and people say positive things to me about it, it's a huge ego boost for me, as well as inspiration to continue.
I am motivated by constructive negative response... When people take the time to tell me how I can improve something, I take it to heart and try to follow through with it. It means that people are trying to help me to get better, and there is no need to disappoint them.
The biggest motivation killer is not having any response to what I do at all. It means that I will be just that less likely to do, whatever it was, again.