I have been administering a bit of TLC lately to the "Blender 3D: Noob to Pro" wikibook http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro. In particular, the UI and scripting sections, which were the big changes in 2.5x, are now a bit more current.

UI overview starts here: http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/User_Interface_Overview

Scripting intro starts here: http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Advanced_Tutorials/Python_Scripting/Introduction

Further to above, I have added two new pages:

* A thorough intro to Object Mode: http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Object_Mode
* Meshes and Edit Mode: http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Mesh_Edit_Mode (replacing the previous “What is a Mesh?” page)

These and the immediately prior 3D View Windows page should give you a good grounding in all the basic Blender modelling operations.