Here are some tutorials database sites that contains collections of all types of tutorials. Many of these sites might even let you submit your own tutorial.

TutorialsGarden.com
Tutorial-Effect.net
Tutorials-db.com
TotalTutorial.com
Tutorialized.com
TutorialMix.com
Good-tutorials.com
Tutorial-Index.com
Tutorials-Expert.com
Tutorial-database.com
TutorialVault.net
Pixel2Life.com
TutorialSite.org
LearnIt2.com
TutorialHero.com
CapitalTutorials.com
Webmaster-tutorial.com