For basic internet users like us, Web 2.0 means fancy AJAX applications, big fonts, flashy colors but also the ability to use and share our own data .

For companies like Nintendo, it means free (or very cheap) marketing. In the last couple of days, I couldn’t help but realize how much money companies must be saving in advertising thanks to Web 2.0. With their new console called Wii that everyone’s waiting for (including me :)), Nintendo is showing us how a company can benefit from the power of Web 2.0 sites. They are advertising their new console to millions of people without any effort.

So, what’s the trick? Just come up with something truly unique and revolutionary, and Digg, Youtube, Engadget, Delicious or Techmeme will do the marketing job for you. For Nintendo, it means free links, millions of visits, and thousands of people who can’t wait about the new console to come out.

In Wii’s case, Delicious has more than 2055 links about it, Digg has hundreds of posts, and of course Youtube also has a lot of videos to please the eyes of every gamer.

So, what can any business learn from Nintendo’s example with Web 2.0 sites? If you too want to get natural links and hundreds of people promoting your services for free, come up with something truly unique, exciting or revolutionary; be the first to do it; build a search engine friendly page or website, and the Web 2.0 sphere will do the rest.