AMMDI is an open-notebook hypertext writing experiment, authored by Mike Travers aka mtraven. It's a work in progress and some parts are more polished than others. Comments welcome! More.
I suppose there is a ton of stuff along these lines from the shady world of business and management. Yuch. Performance objectives and the like.
Malcolm Ocean's Complice and similar sorts of goal-achievement-helping tech from the Rationalist sphere.
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Education! I bet there are theories of motivation that world. Minsky noted the importance of goals in ed, how you inherit goals from your teachers (imprimers). Goals and motivation are not quite the same thing though.
School as an incredible tech for killing natural curiosity and replacing it with something more socially tractable.
I suppose there are good and evil versions of this.
Evil being the most common of course. Everything capitalism uses to keep workers working and consumers consuming.
Good is more self-oriented, you work on yourself, discovering and tuning what you really want and how to get it (assuming that "what you really want" is coherent and good)
Art and Magic have their own obscure theories of motivation. Obscure to me, I'm interested in understanding them better.