What is the meaning of guerrilla marketing?

Guerrilla marketing is any method of marketing using non-traditional media. Some examples of these unconventional ways are in the streets or in other unexpected and often inconvenient places.

Some guerrilla marketing techniques are things like distributing fliers, using the internet heavily, t-shirts, etc. Generally, guerrilla marketing is much cheaper than tradition ad channels.

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Linux

One form I use is to find a group of well dressed, loudly talking, laptop using Windows people and sit down near them, pretend I own a mobile phone and talk just as loud as they are about how I just spend the whole day yesterday clearing out viruses from a laptop running the latest of non Macintosh OS and how easy it is for - some people to collect viruses when Mac people are totally unaffected by viruses from Mac, Linux, and that other Operating System I am not allowed to mention by name.