So you want to rank high in the Google Images search engine results? This has been the topic of discussion in two popular forums, JimWorld and SEO Chat. So how does one rank well for images?
As both threads point out, its important that your alt tag (alternative attribute) is descriptive. Also, it helps to name the file with the keywords in them, example given at JimWorld "a picture of a car should be nissan-maxima.gif with the lat tag being Nissan Maxima."
At SEO Chat some members believe that "putting each image in a specifically optimized html page" also helps.
Do you really want traffic from Google Images? Will they convert? That is your call. Just make sure you don't get hit with high bandwidth bills that make the ROI in the red.

Comments:
Milan Kryl
03/30/2007 11:49 am
It's good to have same keywords near the image in same paragraph or heading before image HTML code. e.g. [p]Optimized keywords[img src="optimized-keywords.jpg" alt="optimized-keywords" title="optimized-keywords" /][/p]
djazz
12/16/2007 02:57 pm
interesting. Im wondering if there's anything else to be done.
hassnain Balghari
08/29/2009 05:52 pm
I am Hassnain Balghari. I want to add my images to google image. Please Help me.
noufal
11/25/2009 08:42 am
how to add my images to google images