While I certainly do understand and relate to your yearning for a significant other who shares your interests, I don't think you're going about it the right way.

The fact is that "geekgirls" are few and far in between. Searching for one of these rare creatures will most likely (statistically speaking) leave you in a state of lonely heart break and misery. There simply aren't enough of them to go around!

Do not despair my fellow wanderer! There are myriads of other interesting girls for you to pick and choose from. Sure, they may not know much about your favorite operating system, but intelligence is not limited to people with specific hobbies and interests.

Why not expand your search to encompass girls that are interested in other things? A chunk of my male geek friends are currently dating/interested in women who lend their minds to the arts, in all its forms. I personally think this is an absolutely magnificent match. Sure, you won't be able to argue about minute technical details on one thing or another, but you will have the priviledge of being with someone who's generally open-minded, creative and expressive. Do these qualities not mesh exceptionally well with those typically found in geeks/hackers?

note: Of course, my example was just that--one single example. I'm sure there are plenty of perfectly interesting women scattered across all fields of interests.