I've been a mission runner for months and really feel that I can maximise my income if I branch into invention and research. What should I do to kick off my new project skillwise and investment wise?
One of the best things to to is go here: http://www.isktheguide.com/
There guide is one of the best around, they describe the needed skills and what you need to start your new endeavor. Even for the expirianced player, this is a good guide.