• arnopolis
• blah blah blah
• bioregion
• The Cascade Episode
  
• Hoyt Arboretum
• old growth forests of Washington
• Tualatin Riverkeepers
• Oregon Mycological Society
• other mushroom orgs

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• Portland Chinese Garden

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• tree identification guide
• tree of life
• Talk.origins archive
  
• Tim Chase's evolution blog
• Timeline of evolution
• species search engine