This should be in the strat section, but until people see there is one I'm putting stuff in here. Mods feel free to move it.
What are your early research priorities besides the obvious Volcanic/Ice Planet Civ techs.
Starting research is always cost vs gain and normally also dictates your strats. I have no idea what all but the most obvious techs really do.
Hopefully some BT's with multiple games can chime in.