I don't know how other people do it, but I usually like to specialize in one line, to get to the other end of the tree as quickly as I can. That way, I can trade my techs for other ones that I don't have, and make a profit. Being next to multiple civs helps, too. But just to show how well this works: I was researching construction, which is at the far right of the AA tech tree in DyP. It took me a while, and the AIs got Vassalage, Code of Laws and Tactics while I researched it. But, I managed to trade Contruction for not only those 3 techs, but also 71 gold, just by getting one from each neighboring civ, because nobody else had Construction or was even researching it. And this is on Emperor, so I found that rather impressive.
Is this what most people tend to do, or do some of you more advanced guys do different stuff?
Is this what most people tend to do, or do some of you more advanced guys do different stuff?