The Best Web 2.0 Software of 2005/2006

Dion Hinchcliffe has a wonderful blog at http://web2.wsj2.com/ about Web 2.0.

There are some of his posts about Web 2.0 software I want to share:

1. The Best Web 2.0 Software of 2005
2. More Great Web 2.0 Software
3. The Most Promising Web 2.0 Software of 2006

I never even heard of some of these fantastic software before.

You can contribute with other Web 2.0 Software below.