A few nice photo tutorials images I found:
Texture Tutorial 1

Image by Robert Scott Photography.ca
A Simple tutorial for working with Textures in Photoshop!
Moved to My Tutorials Webpage!!
Heiße Schokolade ohne Sahne

Image by Jasmic
My son in Georxx, a bar on Georgstrasse, Hannover, having a hot chocolate without cream (which he asked for himself, without help.) German bars, unlike the ones in the UK, are happy to allow children in during the day, and more than happy to let you drink coffee or hot chocolate.
This was manipulated following a tutorial from the UK photography mag ‘Digital Photo’, the march 07 issue. It was meant to be a textured portrait, but this wasn’t the right image for the technique. I did like how the frame turned out though, so I deleted the centre area of the texture and left it like this.
Manipulated using the Gimp.