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DesertUSA is a comprehensive resource covering the North American deserts, their history, culture and biodiversity.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia encyclopedia, Wikipedia encyclopedia, Hutchinson encyclopedia, examples from classic literature, pronunciations, word browser, glossary. Free access

ResearchGATE is a scientific network that connects researchers. Find research partners, collaborate with scientists and explore journal articles.