Got tipped to the Web 2.0 Eco-System:

I don’t really buy into the Alexa stuff, but it is a benchmark of sorts. I would agree with this assessment:

There are lots of problems with this slide, the first being the accuracy of Alexa’s traffic data, which is highly disputed. But as long as Alexa is equally wrong for every Website, that shouldn’t too big a deal, especially if all you want to know is the relative value of one site over another. The bigger problem is equating eyeballs with dollars. Not every visitor is worth the same.

Another problem I see is equating a service like Blogger with something like Wikipedia.

What I do see here is a list of Web 2.0 tools for the destination marketer. Here’s my take:

Top Tier: YouTube and Wikipedia offer the biggest bang for buck. MySpace and Blogger both are better off replaced with a self-hosted blog powered by WordPress.

Photo Sharing: Flickr

Getting the Word Out, Pinging, Sharing: del.cio.us and/or Technorati for tagging and sharing your world, Bloglines as intelligence HQ, all feeds through Feedburner.

If you’ve got extra time and energy, add a Squidoo lens or two.

The big giant missing pieces are Google Maps and Google Earth. The stuff going on in these communities is simply unbelievable. Have you seen My Maps? View in KML?! Think of the possibilities.

Update: Seth’s right on track, but I would still recommend going the extra mile to register your own domain and self-host your blogsite.