If this is not a glitch, I just cannot figure out why Google would completely drop certain sites from the image database. Look for example at the one in my profile. That site is non-commercial, still does very well in the main index, but has now completely disappeared from Google's images. To my knowledge, the only time my host's servers were down was for a day or two at most at the end of July. There has been no major change to the site structure or anything else. So why was it dropped? I would really appreciate if someone can come up with an idea.