Please note these are for blender, and feel free to post any you have found/made
Blender official tuts
-http://biorust.com/index.php?page=tutorial_detail&tutid=81&lang=en Creating a winter scene
-http://download.blender.org/documentation/oldsite/oldsite.blender3d.org/117_Blender%20tutorial%20Fun%20with%20nurbs.html "fun with nurbs" Creating a mouse using nurbs
-http://download.blender.org/documentation/oldsite/oldsite.blender3d.org/2_Blender%20tutorial%20Building%20a%20Spiral%20Stair.html Building a spiral staircase
- These are but a few that exist at http://www.blender.org/education-help/tutorials/
to be honest these are the only ones i know, but you guys know a lot more and i started this hoping that you would show of your tutorials to help people have a source of links