Work Options with a laptop while traveling?

O.k., so I've been throwing some thoughts around recently about traveling and working. I have a laptop and I'm (very) regularly on the internet.
So the question is, what jobs/work could I potentially do? Since they always talk about work that can be done while away from a desk, so is there options for work that can be done while travelng?
Now obviously, I'm not talking full-time or amazing salary-type jobs, but if there was the possibility of supplementing my income (or lack of ;), does anyone have ideas?

All ideas welcome, and make sure to put them in the comments, not email to me so that they may be of benefit to others......

Modern technology

Motivations and sticking my neck out