I agree naming and shaming goes a very long way indeed.. I've read your post and please don't take offense at my comments, but since your simply want to share truthful information, you might want to clarify a few things in your post.
Images don’t require a “watermark” of any kind
August images is NOT the same as GETTY IMAGES,2 different companies altogether.
August Images uses Picscout to find offending images, Picscout is in turn owned by Getty Images, but a separate entitiy
“Image one & Two” is referred to as “Front & Back of Getty Images letter”, the letter is from License compliance services, which again appears to be offshoot of Picscout. I’m currently digging to find LCS articles of incorporation.
You might consider putting “Samantha Clemens” in the text of you post to get picked-up by search engines.
Be wary of suggesting sites that offer “free” images, as many times there is no way to vet where those “freebies” originated from.
For example look at the terms from morguefile.com:
“Any questions regarding liabilities should be directed to the specific photographer.”
“…although they are not in the public domain. You are still responsible for the legal content of the images including model releases and property releases”
"What does it mean I have to alter the image."
The morguefile license is specifically for designers and illustrators to use the images in a creative process creating work of their own. If you would like to use the image in a blog post, we recommend contacting the photographer and providing a by line under the photo with the photographer's name. This is generally agreed to be acceptable.
http://www.morguefile.com/terms