Organic marketing, of course, is different from outbound or paid marketing. Outbound marketing seeks to place advertising and promotional content in front of people who are not looking for it. In our era of big data, the ability to target advertising has blurred the line between in and outbound marketing slightly. Paid marketing is good at generating traffic when it is needed. However, organic marketing will continue to provide leads over time without the need to continue to spend on advertising.
The term was first used by Internet theorist John Kilroy in a 2004 article on paid search marketing. Because the distinction is important (and because the word "organic" has many metaphorical uses) the term is now in widespread use within the search engine optimization and web marketing industry. As of July 2009, "organic search" is now common currency outside the specialist web marketing industry, even used frequently by Google (throughout the Google Analytics site, for instance).