1) Legos seem to have a bit of a revival lately, especially with the Lego series of video games. If anything, they're very much mainstream now, which is a good thing. Anything that helps kids use their imaginations to build stuff with is good.
2) Rummicube - Eh, did anyone actually play this? Or was it even part of Geek culture?
3) Star Wars/Star Trek - Star Trek and Star Wars have had something of a revival recently with the reboot and Episodes 1-3 and Clone Wars. Okay, the Star Wars stuff has kinda sucked recently, but Star Trek can still cool to a modern audience without being nostalgic.
4) Soviet Russia - Did anyone actually use this outside of some seriously dated Yakov Smirnoff materials in the 80s and 90s? You hear it nowadays, but it's so rare, I wouldn't put it with the rest.
5) Netcraft - Such a tiny tiny minority of "geek culture" shouldn't qualify this to the whole.
6) Bill Gates - Bill Gates and his foundation have done so much good recently, I'm loath to make fun of him. He's improved education and vaccination in the developing world, saving lots of lives and giving prospect to a lot of children who had none before. That's pretty much the context I see him in now - rarely the "Bill Gates is Evil" meme now. Update your Meme, man.
7) Desktop Linux - Eh, so what? Linux is improving on the desktop all the time, and Linux has come to dominate phones (and to a lesser degree) succeeded on tablets, so it's not really that farfetched.
8) PACMAN - The only time I see this is when Google brings out the doodle.
9) Tron - Maybe it's a little nostalgic, but it just had a big movie come out a few months ago. That's not nostalgia, man, that's new and cool.