Italki
italki.com is an online destination for learning foreign languages. italki connects people from around the world in a friendly community to learn from each other. italki helps people meet online to do free language exchanges. italki also helps students connect with teachers for paid online lessons. In addition, italki has many free language learning features, such as questions and answers, group discussions, and multimedia materials for self-study. italki is both a social network and a marketplace. The social network helps bring people together to communicate and learn. The marketplace gives students, teachers, and companies the abililty to transact online.
http://Italki.com/百度权重：
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收录时间：2024-11-08Newscientist
Science and technology news from the weekly magazine includes daily updates from around the world. Includes Hot Topics, interviews, book reviews and job listings.
http://Newscientist.com/百度权重：
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收录时间：2024-11-19R-project
R, also called GNU S, is a strongly functional language and environment to statistically explore data sets, make many graphical displays of data from custom command line, shell has option to save one full environment per working directory. Descriptions, documents, downloads. [Open Source, GPL]
http://R-project.org/百度权重：
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收录时间：2024-11-10Iitm
Official site. Information about programs offered, departments, activities, research, admissions, events and contacts.
http://Iitm.ac.in/百度权重：
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收录时间：2024-11-11Technologyreview
MIT's magazine about innovation, with online articles on specific technologies and a focus on the process by which new technology gets out of the lab and into the marketplace.
http://Technologyreview.com/百度权重：
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收录时间：2024-11-19faucetbox
Bitcoin micro-payment processor which provides webmasters and developers free crypto-currency faucet scripts, and allows faucet users to collect bitcoins and get paid in bulk without any fees.
http://faucetbox.com/百度权重：
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收录时间：2024-11-07Esri
Offers free software, online mapping and GIS training, demos, data, product and service information, user scripts, and related information. Makers of ArcView, ArcGIS and ArcIMS.
http://Esri.com/百度权重：
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收录时间：2024-11-07Foreignpolicy
Magazine of global politics, economics and ideas. Published bimonthly in print and daily online by the Slate Group, a division of the Washington Post Company.
http://Foreignpolicy.com/百度权重：
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收录时间：2024-11-15Citeseerx.ist.psu
Scientific literature digital library and search engine.
http://Citeseerx.ist.psu.edu/百度权重：
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收录时间：2024-11-07Aleks
Provides a complete web based educational environment for K-12 and Higher Education mathematics science, statistics, and business.
http://Aleks.com/百度权重：
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收录时间：2024-11-17
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