Schorpioen
All about the dreaded scorpion, includes color photos, scientific names, common names, description, behavior, range, habitats and life cycle.
http://www.desertusa.com/oct96/du_scorpion.html
Spinidentification
Spider biology. how to identify house or comb-footed, orb weaver, funnel web, aggressive house, recluse, wolf, jumping and crab or ambush spiders.
http://www.montana.edu/wwwpb/pubs/mt9210.html