Here is my situation. I have a printing website that offers about 30 products. On every product page I have a line like "We also offer ..." and all the other 29 products, that are linked to the service page. Every time I add a products I have to go page by page to add it on every one. So here is the idea... all those 30 products will be loaded from a php array, but I want to load them in random order very time we load the page so it doesn't repeat the same on every page. Here is the question. Is that good for SEO to have random generated code sentence and liked to the product page? Is that considered black hat SEO? )) Thanks upfront!