An excellent Photoshop resource is to be found at PhotoshopSupport.com
There you will find a wide range of tutorials covering the most recent versions of Photoshop. Photoshop (by Adobe) is a very popular photo editor with a vast range of effects. Its possible to do much of what Photoshop does with open source software like GIMP or similar but cheaper software (Pixelmator, Photoshop Elements and GraphicConvertor) but nothing quite matches Photoshop for the breadth of its capabilities.
Whether you are a newbie of an experienced user of Photoshop there is something for everyone so get yourself along there today.
If you need to produce web graphics, carry out some photo retouching or need to create some fancy text effects then you will find plenty to interest you on her site. There are also plenty of links to other sites so its worth bookmarking her site or adding it to your favourites.