-- According to Wikipedia, Guerrilla Marketing is "an unconventional system of promotions that relies on time, energy and imagination rather than a big marketing budget. Typically, guerrilla marketing campaigns are unexpected and unconventional... and consumers are targeted in unexpected places."

IN PRACTICE
-- Anyone who's traveled to areas of the major cities where construction is in progress or windows are boarded up, have seen a series of repetitive small posters, pasted together for greater impact. This same concept can be used in smaller towns on business storefront windows or even interior walls for the same effect.
-- 500 - 12" x 18" posters only cost $199 -- you can do some great *guerilla marketing with them.
-- Another idea is to roll up your posters with a rubber band around them and have people hand them out at public events, the mall, campus, or even street corners. If the design is 'suitable for wall hanging' people will gladly accept it.
-- An even better way to get your message to a large number of people is to offer to help sponsor an event or cause by printing the posters. The group gets free posters and promotion, and you get your name in front of everyone who sees the posters. TIP: Keep your logo or business name small on the poster, so as not to detract from the primary message.
-- -- Remember, not only does everyone who gets a poster, see your message; but everyone they know that sees it on their wall.