According to Wikipedia Web 2.0 is "a perceived second-generation of Web-based services—such as social networking sites, wikis, communication tools, and folksonomies—that emphasize online collaboration and sharing among users." This includes websites like YouTube, MySpace, and Free IQ. YouTube and MySpace in particular heralded this new era of the internet by creating their own isolated type of network.

What this means for the internet marketer is an ability to find a large amount of targeted people very easily. Using the "search" features it's possible to narrow down a specific group of people you want to market to and set up shop. The capabilities of these websites take advantage of the newest internet technology using audio, video, and being able to track them as well making it invaluable in testing and fine tuning your campaigns. People respond well to audio and video on websites allowing you to filter them to your sales page or link the video directly to it.

The above mentioned Web 2.0 sites become, or will become, multi-billion dollar businesses. That's right, BILLION. The buyout of YouTube by Google is a hint of what's to come in this rapidly growing area of the internet. The sites are hugely popular and command so much traffic that missing an opportunity to market on them is becoming less and more mandatory. Marketers will huge lists in multiple niches will probably be immune to the changing of the internet because they can filter their lists to their foot holds in Web 2.0 sites and do just as well there. The new marketer really needs to step up and keep up with the changes or the world may change around them before they learn how to adapt to needed new ways of marketing.