Largest known earthquake database with statistics and information about locations, magnitudes, with google earth support, search engine and RSS feeds

Browse all the currently known volcanoes with map locations, times of eruptions and much more!

A website dedicated to sharing ideas and information on beam shaping using diffractive and geometrical optical techniques. Provides discussion forums, news, and conference links.

Find out more information about one of the most interesting building materials used today - quartz crystals. Learn about the different types of quartz crystals, the range of colours, and why they have been growing in popularity and use.

Transportranking covering all aspects of transport. Our primary aim is to promote the auto transport industry through consumer driven votings.