The USGS released Circular 1325, "The Landslide Handbook - A Guide to Understanding Landslides," which is intended to be a resource for the decision-making process in land use along with responding to and mitigating landslides.
They define landslides in a broader sense, including earth and debris flows, rock falls, lahars, etc.
The handbook also serves as a useful technical reference as well. On first look, the diagrams are well done and examples well chosen.
The guide covers basic mitigation techniques in a fair amount of detail as well as laying out avoidance strategies.
This looks to be an extremely valuable reference for a variety of uses.
Thanks to Hobart at geology.com for spotting this.