I read a few blogs. I monitor a few mailing lists. When I read a post, I like to know how that person looks like. I guess that I am one of those visual types. (My image is at every page of this blog.) And sometimes it is not an easy task to find it out. So, I found images of a few testers (not in any specific order):

I tagged them as tester at my delicious account (del.icio.us/zeljko.filipin/tester). I will be adding more, as I find more images. If you are a tester, or you have found images of other testers, leave a link to image in comments.