GIS Tips and Tricks

Aubrey Drescher, Geospatial Engineer runs this blog on GIS tips and tricks. Although it doesn't yet have a lot of content, what is there is well organized and thought out. Most of the tips and tricks have screen shots for those of us who are graphically advantaged. She has a great introduction for who are unsure of what exactly GIS is, and explains the more advanced material very well. Check it out.