Welcome to The Nature's Quick-Dry Forum. Feel free to post a message.
I'm not sure if anyone has seen this website but I ran into a guy who does tile and grout and he recommended this site. I did a quick check of it and it seems useful.
PS if you type johnbridges like I did you get a older gentlemans website on Etiquette and how to be a gentleman. In case anyone needs help with that too.
Also useful re. grout: www.dirtygrout.com and