Had a few conservative profs at university, I tried to take as many courses with them as I could fit on my transcript, and I wrote glowing reviews, etc. If all Conservatives did the same, then there will be more conservative professors.
Eh, I don’t think that would work to actually get more conservative professors, just to get pay raises for the ones that exist. In my experience, conservatives who want to be professors are businessmen and engineers (two subjects that I happily never plan on taking in the future) and they don’t usually hold degrees in ‘soft sciences’. Then again, I’m mostly in the hard sciences, where politics are considered ‘boring’ and people are getting quite fed up with Obama’s ‘all talk, no action’ stance on science.