Domination
Development
I like Domination, maybe someone else can come up with a better alternate for Development.
Domination should be all technologies that are important to dominating your subjects, and those you want to subjugate. Might even include some so-called Defense stuff to keep from being Dominated/Subjugated.
Development should be all technologies that "improve" the status quo and/or help maintain it - again "Defensive" technologies come to mind.
And, why not have many paths, or least more than one, to some technologies. Research is not really so linear that there is only one way top get to all things.
p.s. this thought was caused, in part, by one of the letters to the developers - pre-release and what he hoped we might suggest re: technology development UI.