I found a great site with lots of tutorials in five basic categories which are software (mainly graphic based), web design and markup, programming, operating systems and finally business. Every category itself is again divided into subcategories, for example flash with its 920 tutorials is a subcategory of software.
The three biggest subcategories are php, flash and Photoshop but you also found exotic categories like Blender 3D. Its a nice site if you are creating your own homepages or want to start doing so.
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