Make-one method for tubular cast-ons
Increases to use in a shawl
How to do a right lifted increase
How to do a left lifted increase
How to increase in the moss/seed stitch.
Increase: flipping the knit in the front and back.
Increase & decrease calculator
This is pretty neat. Helpful if you put it on your phone, I pad, etc.
This article has some good pictures of the different ways to increase.
M1L, M1R : good explanation
The pictures are helpful.
Placement of increases & decreases
The formula for placing increases and decreases come from the same Ann Budd web site as the information regarding changing gauges.