The Gimp – Tutorials

The tutorials at http://www.gimp.org/tutorials/ are very useful. You may come to astonishing results following them. My favourite ones are

• http://www.gimp.org/tutorials/Color2BW/ (How to create good grayscale images from coloured ones)
• http://www.gimp.org/tutorials/Film_Grain/ (How to add film grain to make the image look somewhat vintage)
• http://www.gimpguru.org/Tutorials/FilmGrain/ (dito)

Another nice tutorial that deals with creating vintage look using The Gimp is here:

http://www.linuxjournal.com/article/6750

It focuses on more subtle filtering.