Jay Conrad is the father of the trendy street marketing aptly named 'Guerrilla Marketing'. His book has been translated in 40 languages and has sold a whopping 14 million copies. Although primarily developed as a sales strategy for salespersons, this form of marketing has found success in online campaigns.
A loose definition of Guerilla marketing could be relying on time, expanding energy to spread the word about your product and using innovative ways to build brand image without using a big budget. In other words, find your 'niche' and spread the word. The idea is the to deliver the product to the customer with a message and testimonials, without spending too much money.
In fact, Guerilla marketing has a lot in common with Guerrilla warfare. Both use is unconventional warfare, both use small 'combat' or sales people and wait patiently for the right time to 'strike' a guerrilla campaign.
Some of these tactics have been used by online marketing organizations through viral and buzz campaigns, blogging and social networking. Unfortunately, these tactics act as supplement to a main Internet marketing strategies, and may not sustain themselves in the long run.
Internet Marketing