I like helping out the noobs when I can so I write xna tutorials (mostly for the Platform Starter Kit since that's what my first game was based off of) on our website. I'll post all the current links here also so there's another place you can find them.
Tutorials for the XNA Platform Starter Kit:
-Adding a gun to shoot
-Double jump
-Adding ladders
-Saving/loading on 360 (Not exclusive to PSK)
-Adding lives
-Adding checkpoints
-Saving player's position on PC
-Adding a field of view to enemies
-Adding melee
-Adding moving platforms
Other tutorials:
-Text class
-Color blending (interpolation)
-Multiple column menus