The EU-funded Safeland Project has recently come to an end.  This was a very large, multi-institution research programme designed to:

“develop generic quantitative risk assessment and management tools and strategies for landslides at local, regional, European and societal scales and establish the baseline for the risk associated with landslides in Europe, to improve our ability to forecast landslide hazard and detect hazard and risk zones”

The project website falls into the trap of so many such sites, focusing on a description of the project (which is actually rather mundane on the whole) rather than the findings of the research (which is definitely of interest more widely).  However, hidden away in a corner, well hidden, is a fantastic resource.  This is the reviews and reports that the project has generated, many of which are rather good.  There are multiple documents there, including:

Guidelines: recommended models of landslide triggering processes and run-out to be used in QRA

Recommendations for run out models for use in landslide hazard and risk mapping

Overview of landslide hazard and risk assessment practices

Guidelines for the selection of appropriate remote sensing technologies for monitoring different types of landslides

Guidelines for landslide monitoring and early warning systems in Europe – Design and required technology

 Guidelines for the selection of appropriate remote sensing technologies for monitoring different types of landslides

Guidelines for landslide monitoring and early warning systems in Europe – Design and required technology

Compendium of tested and innovative structural, non-structural and risk-transfer mitigation measures for different landslide types

Toolbox of landslide mitigation measures

Design and testing: a risk communication strategy and a deliberative process for choosing a set of mitigation and prevention measures

In fact there are many resources and reports available if you go to the Work Packages pages and click-through.

These are really fantastic resources.  I recommend in particular the Remote Sensing report, which is very impressive and useful.  It seems a great shame that so few people are aware of what is available.