You can find good painting tutorials on lynda.com, i suggest you tutorials about Corel Painter, it is software specially developed for painting but you can find and painting tutorials for Photoshop on the same site.

Tutorials for digital painting can be accessed at the website of Chris Oatley where he has developed tutorials for concept artists and illustrators. The website 'You the Designer' also has video tutorials online that may be helpful.

There are video tutorials available instructing in speed painting from various websites online. Examples of these include idrawgirls and digitaltutor.

There are many different tutorials that teach interested people how to acquire digital painting skills. For example, Apple has a beginner's digital painting tutorial that can be found on YouTube.

The DIY website has wonderful tutorials on home decorating, painting, lawn care and much more.