hwestiii writes: "Geek identification methods have waxed and waned over the years. Back in the years when it was still not cool to be a geek, they were identified by their pocket protectors and calculators hanging from their belts. And way back in the mists of time, before most of the Slashdot crowd were even an item on their parent's life-project-plan, they were identified by possession of ... slide rules. I'm clearly dating myself by submitting this, but I owned and used slide rules as a teen, just as microelectronics was making cheap calculators possible. Nando times has an interesting link to a community of people around the country trying to keep the memory and spirit of the slide rule alive. Some may be wistful, some may think 'What the hell...?' Take a look." A quick look at Google's image search yielded some cool photos of both slide rules and the classic HP-35 calculator -- I wonder where the HP-35 my dad used to use has gotten to. Does anyone still use slide rules on a regular basis?