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IDEAS is a central index of economics and finance research, including working papers, articles and software code

Twitter is without a doubt the best way to share and discover what is happening right now.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

AbeBooks is your source for Used, New, Rare and Out of print books. Find classic collectibles, rare signed editions, used textbooks, and inexpensive bestsellers from independent booksellers worldwide.

Palabras diferentes sobre lo cotidiano...

Prezi is the zooming presentation editor

Search millions of job listings from across the web. Find local jobs, salary comparisons, and employment trends at Simply Hired. New jobs added daily.

Massive change is underway in our economy, energy and environment. We connect the dots as events unfold, offering valuable insights on how to protect and grow both wealth and quality of life.

IUCN, the International Union for Conservation of Nature, helps the world find pragmatic solutions to our most pressing environment and development challenges. IUCN supports scientific research; manages field projects all over the world; and brings g...