What of those is useful? I don't have a Windows machine, so a huge number of those don't make sense or are worthless. I don't care one whit about hardware, which eliminates another large swatch.

1. memory connectors, 2. keep your apps on a memory stick, 3. straighten old CPU pins, 4. know some basic HTML <br />, btw, is to be compatible with XHTML and is not pre HTML-5.0. 5. is "executive customer service", 6. play Quake in <1 hr, 7. "build a Hackintosh", 8. watch movies online (which even my non-geek Mom does), 9. get around content filters (doesn't a real geek have 3G or such connection?), 10. π to 23 decimal cases (blah), 11. replace a controller board, 12. benchmark a computer, 13. use printer paper to decorate your room, 14. "Securely Erase Your Data", 16. hide your porn ... X. 'shop a photo, Y. something about modding a Valve game, Z. rocket jumping, ... and more.

I'm a real geek, and I say that most of these are relevant to only a small subsection of people who self-identify as a real geek, much less of those considered real geeks by others.