Archaea

• Crenarchaeota
• Euryarchaeota

• Danish Archaea Centre  - Contains data on the evolutionary mechanisms, biosphere and potential pathogenic properties. Includes research, publications and projects.
• Earth life Web: The Archaea  - Provides data on the characteristics, technical information and member organisms.
• Genome News Network: New Amino acid Discovered in Methanosarcina barkeri  - Contains data on the discovery of new amino acid and pyrrolysine on the member organism.
• The Guardians: Archaea  - Offers information on the DNA analysis, basic tree of life, four main types of the group and links.
• RCN: Archaea  - Contains information on the history, groups and taxonomy.
• University of California Museum of Paleontology: Introduction to the Archaea  - Contains data on history, ecology, fossils, systematics and morpholohy. With photos.
• UPPSALA UNIVERSITET: The Archaea Group  - Provides introduction, evolution, ecology and diversity. Includes exobiology and research.
• Windows to the Universe: Archaea  - Offers information on the characteristics and properties. With photos.