Apple FanboyProbably the most well-known of the Tech Zealots, the Fanboy is not difficult to spot in his natural habitat: In a coffee shop, most commonly in \n\nthe San Francisco Bay area, surrounded by a MacBook Air, an iPhone 3GS and maybe an iPod Nano or Touch. Don't forget the mandatory black \n\nclothing and white earbuds. (The eager anticipation you see on his face is due to the impending arrival of the iPad.)\n\nMicrosoft BelieverMicrosoft believers have been worshipping the leader of the other \n\nside of the Apple-Microsoft holy war (Bill Gates) for decades. Leaving Windows \n\nwould be as unthinkable as leaving Las Vegas on a winning streak. Microsoft \n\nbelievers have their own interpretation of the history of software: how it's been developed, marketed and sold during the past 30 or so years. That \n\ninterpretation does not favor men who wear black mock-turtlenecks. Penguins also \n\nnot so adorable.\n\n\nGoogle GroupiesThese can be tricky to spot: Stealthy Google adherents stay under the cover of "Don't Be Evil" and are reluctant to flaunt their successes as much as those of the competition. But lurking behind \n\nthe typical "Aw shucks" demeanor and glasses (see: CEO Eric \n\nSchmidt) is a smart and always-connected individual who prefers to do everything via the Web. \n\nConversational giveaway: Loves creating new verbs from nouns.\n\n\nFacebook FanaticIt can be a 16-year-old high schooler, 42-year-old mom or 62-year-old retiree: The Facebook Fanatic has a case of virtual voyeurism, and has it bad. This person has no issue with Facebook privacy and security gaffes and hasn't a care how Zuckerberg & Co. will monetize their personal information\u2014"Just let me see the G.D. photos of that party I wasn't invited to!!!!" \n\nFacebook Bible: Everything You Need to Know About Facebook\n\nSalesforce.com DiscipleDon't ever\u2014EVER\u2014talk about on-premise, traditional software in the presence of a Salesforce.com Disciple. Heresy!! (Stay clear of \n\nOracle-related topics, too.) A true follower will usually have a copy of Benioff's book on \n\nhis bedside table. Also a dead giveaway: This is one of the few techies who is not referring to a Jedi or Skywalker when he speaks of the Force.\n\n\nOracle High FlyerTheir smug arrogance is matched only by their deference to Leader Lawrence J. Ellison. They will top you at anything\u2014aerial acrobatics, facial hair, coding, golf, net worth calculations. Other telltale signs: Proclivities \n\ntoward Asian art, high-seas yachting and hostile acquisitions.\n\n\nTwitter DevoteeFor these folks, there's never been a random thought or self-aggrandizing quip not worth tweeting to the masses. They claim not to know or care much about their number of followers, but that is just a smoke screen; they know the exact number. They \n\nspeak in their own ever-morphing language of abbreviation and #hashtags. What \n\nscares them more than anything else? The Fail Whale!\n\nTwitter Bible: Everything You Need To Know About Twitter\n\nRIM CrackBerry AddictLike a cautious mother wildebeest watching over her young calves, the RIM devotee never takes his sights off his BlackBerry. (iPhones, Droids and the like are the pack of hyenas circling about.) In a business environment, \n\nCrackBerry addicts can typically be found heads down, persistently tapping in their laps, with no concern about how that might look. (It's not rude. It's called \n\n"being productive!") Dinner conversation: Yesterday's battery-life usage.\n\nGet Your BlackBerry Black Belt with CIO.com's BlackBerry Bible: Everything You Need to Know About Your RIM Smartphone\n\nIBM FollowerOne of the oldest species in the high-tech ecosystem (species classification: Biggus Mainframi) who has continually adapted and changed his appearance with each succeeding decade and tech trend. He now wears a French blue dress shirt but sported plenty of ugly ties back \n\nin the day. One sign that will help you spot an IBM Follower: An understated combination of confidence and entitlement. \n\n\nCisco Gear HeadHard-core IT engineering geekdom is what we're talking about here. Cisco Gear Heads think plumbing has nothing to do with water and pipes have \n\neverything to do with bandwidth. Networking? It certainly ain't about schmoozing with other people. The habitat they are most comfortable in: A \n\nhumming data center, with lots of switches, routers and multicolored Ethernet cables. A special treat: An evening spent admiring ceiling after ceiling full of \n\nwireless routers.\n\nSAP AdvocateDignified. Restrained. Multilingual. This overall "quiet confidence," on display here by three former SAP execs, best typifies an SAP Advocate. \n\nOn occasion, he can easily be mistaken for an IBM Follower. You can spot the difference pretty easily: Ask him to pronounce "NetWeaver" or about \n\npopular restaurants in Walldorf. He'll "get it."\n\n\nVMware EnthusiastIf it isn't virtual, he doesn't love it\u2014whether it's a desktop, a server or an online flirtation. The VMware enthusiast is often heavily certified, in \n\nacronyms that leave last decade's Novell boys scratching their heads. He helped put the hype in hypervisor and is now completely conversant in The Cloud. His side job: \n\n1-800-Got-Old-Data-Center-Junk?\n\n Do you Tweet? Follow me on Twitter @twailgum. Follow \n\neverything from CIO.com on Twitter @CIOonline.