Importance of alt tag on a Image

The Google guy Matt Cutts discusses about the importance of alt tag for an embedded image on a web page. How it can describe the image to a search engine how to get a better listing in Google Image Search.

This is a must watch video if you have lots of images on your site or blog or you run a image gallery. You will wonder how much traffic you might get from it.

The video is about 3:10 Minutes long and 5.98MB in size.