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forces of nature, video and information from National Geographic

A free science library and personal learning tool brought to you by Nature Publishing Group, the world's leading publisher of science.

The NRCS Photo Gallery contains natural resource and conservation related photos from across the USA. The Gallery is a joint project between NRCS Conservation Communications and the NRCS Information Technology Center in Ft. Collins, Colorado.

PaperRater.com is a free resource, developed and maintained by linguistics professionals and graduate students. PaperRater.com is used by schools and universities in over 46 countries to help students improve their writing. PaperRater.com combines the power of natural language processing (NLP), artificial intelligence (AI), machine learning, information retrieval (IR), computational linguistics, data mining, and advanced pattern matching (APM). We offer the most powerful writing tool available on the internet today.

Those who constantly strive to learn more from the world around them, who can't pass up an opportunity to pour over a book or dictionary, or who take classes just to learn a bit more are a special breed. For those with an iPhone, the chances for learning just got a lot greater. No matter if you love literature, science, nature, arts, foreign languages and travel, medicine, or Christian studies, there are apps that will enhance your ability to expand your knowledge base.