Twitter is a great place to follow your passions, but where do you turn when your passions skew a bit nerdier?
Mashable has compiled a list of 13 of the most active geeks on Twitter to get you started. We've rounded up a mix of science and space experts, not to mention the ones who write fantastic adventures featuring these topics. And if you enjoy games and the people who play them, we've got you covered.
Check out our roundup of all things geeky. You can even follow the Twitter list we created to see them all. Did we miss anyone? Let us know in the comments.