The Google 3D Warehouse contains thousands of models for use in Google Earth and Google Sketch Up. It is also possible to use these models in your Blender projects.
The origin of most objects is the middle but it is sometime easier to work with an object if the origin is a corner. This tutorial shows you how you can easily move the origin of an object.
One of the first things I wanted to do with Blender was include an image in the background. It wasn't easy to find a simple explanation of how to do this. Here is a quick guide to adding images.
It is simple when you know how but I found it quite a challenge to work out how to create some simple 3D shaded text in Blender. Many of the tutorials assumed too much or were too complicated.