Interesting catalogues and subject indexes of a Internet resources 

• BIOSIS - Conference Calendar for Zoology
• Biodiversity and Biological Collections WWW Server
• Biology - U.S. Geological Survey Registry of Earth and Environmental Science Internet Resources
• CAB International
• College and University
• Natural History Museum, London - E-mail List Directory
• OSP BioLinks Page
• Royal Society
• Science, Research and Development
• Species Biodiversity Links - U.S. National Biological Information Infrastructure (NBII)
• Useful Web Sites for Biologists