I have an online store with my all of my guitars for sale. The photos have my business watermark. I dont really want to advertise my stuff for sale here, and that is not my intention. But in the process of providing imagery of a particular instrument, it is easier for me just to reference the URL image links from my existing site. What are the rules on posting images of guitars with a business watermark? Normally, I dont post that much, but I have just come across some late 60's SGs I would like to post.