Venom Process
Not really a tutorial, just a process of how I painted my Venom

Signature Tutorial
a freestyle tutorial on a lot of the techniques that I use for my signatures

Dom Troop Tutorial
A tutorial on how I made the Dom Troop Signature

http://www.good-tutorials.com/
a good selection of tutorials for photoshop, but some of the links don't work sometimes

http://www.tutorials.cn/
same as good-tutorials, but it also has tutorials for a lot of other graphics programs

http://www.deviantart.com/deviation/22299908/?&q=idnar&qh=boost%3Apopular+age_sigma%3A24h+age_scale%3A5
a tutorial for people who have a tablet and wish to explore the wonders of digital painting, tutorial courtesy of one of my favourite artists, idnar.

http://tutorials.epilogue.net/cat/tutorials/digital-art/
another very good site for digital painting tutorials

that's all I know for photoshop tutorials. I'll add some of my own once I have time (and learn how to make one). Well then, until the next time I update.