Useful for links to: ‘Real-time’ monitoring of an active landslide above Highway 50, California; landslides in Japan.
http://www.pacificnet.net/~gimills/slides.htm

USGS National Landslide Information Center:

This site includes: landslide maps of the San Francisco Bay area; a virtual field trip of an earthflow; images of landslides; landslide archives; details of recent events; and landslide links.
http://landslides.usgs.gov/html_files/nlicsun.shtm