Effective use of Google AdWords can generate increased search engine traffic in less than 30 minutes. AdWords can produce more sales (and profits) than almost any other form of search engine marketing, but Google's complex and competitive system ensures financial disaster for the unprepared.

Traffic from search engine optimization isn't truly free. Getting and maintaining good search engine position takes considerable expertise and time. In contrast, a viral traffic feedback loop can be set up in a few minutes and supply a constant flow of targeted traffic for years.