You meet a beautiful woman at a bar... Suppose you walk up to her directly and say, "I'm really good in bed!" That's called "direct sales." If your friend walks up to her, points at you, and says, "He's really good in bed!" That's called "advertising"! If you get her phone number, and call her the next day to say, "Just letting you know, I'm really good in bed!" That's called "telemarketing"! If you simply approach her politely, introduce yourself, pour her a drink, talk about your hearts, escort her out, open the car door for her, and after she gets in, say, "Just letting you know, I'm really good in bed!" That's called "public relations"! If you give the waiter some money and ask him to tell the girl, "That guy sitting at the bar is really good in bed!" That's called "media buying"! If you go up to her yourself and say, "Not only am I good in bed, but I'll also give you 'special services'!" That's called "product promotion"! If that girl comes up to you on her own and says, "I heard you're really good in bed!" That's called "brand appeal"! If another girl goes up to that beautiful woman and says, "He's really good in bed!" That's called "word-of-mouth marketing"! If one girl keeps clinging to you, and when asked why, she says, "Because he's really good in bed!" That's called "brand loyalty"!
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Next... While everyone is surprised, quietly slip your business card into the waitress's bra. That's called black hat SEO. Grabbing the microphone in the bar and shouting, "I'm really good in bed!" That's called mass advertising. Watching the waitress touching herself in the dark is called narcissism (narcissistic linking)!! Linking your own website to itself is called homosexuality (homosexual linking). Continuously giving more money to the bartender, asking him to tell those women, "This guy is really good in bed!" That's called bidding for rankings! If the menu in the bar has your name printed on it, followed by "I'm really good in bed!" That's called blog marketing!
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In short, explained in simple terms and easy to understand, all categories and concepts of marketing are fully interpreted. This is what true marketing is!