Image resizer is a great tool, BUT I will recommend that somebody do a tutorial on how to use it in WebMatrix. Yea, I understand Webmatrix is for beginners, BUT this tool is great for cranking out demos and proof of concept sites that Pros use Webmatrix for.
Yea, I use Visual Studio for most of my real work, BUT like many of team mates, we use Webmatix as a starting point. IMO, it's the best code editor out there