English Language Dictionaries

• ARTFL Project: 1913 Webster's Revised Unabridged Dictionary
• Merriam-Webster Online Dictionary and Thesaurus
• The Macquarie Dictionary - Interesting information but not the actual dictionary itself.
• Your Dictionary.Com (English and Other Languages)
• OneLook Dictionary Search - Searches words from 970 dictionaries.

Foreign Language Dictionaries

• Travlang Translang Dictionaries
• ARTEL Project : French-English Dictionary Form
• Freeware Online Dictionary (English-French)
• English-Chinese Dictionary - Search by Chinese, Pinyin or English.
• English-German Online Dictionary
• English-Spanish Dictionary
  

Maps and Atlases

• Atlapedia.com
• Gheos World Atlas
• HRW World Atlas
• Quick Map of the World
• Where is Street Atlas