I ehard there are some imageagencies that are very strict. I heard Wireimage, celebphoto/iamge, and getty are very strict about their images and sometimes sue fansites.

Are there any more that are like those mentioned above?

I especially wonder about these listed bwlow:


Newscom
AlphaPRess
Uppa
Corbis
all action
dailyceleb
retna
hutchins

Why don't you check their ToS or contact them? If the images have a watermark like Getty, you obviously know they don't want you messing with it.