Open e-print archive with over 100000 articles in physics, 10000 in mathematics, and 1000 in computer science. (Formerly called xxx.)

The Impossible Quiz 2

Condensed China: Chinese History for Beginners. Condensed China offers a lively, quirky, and interesting take on the events, trends, and accomplishments of China's past four thousand years. Starting from the Xia Dynasty, more than two thousand years before Christ, and moving up to today, the site touches on topics ranging from the development of Daoism to the handover of Hong Kong.

Hoefler & Frere-Jones (H&FJ) designs and markets original fonts. Their body of work includes some of the world's most famous designs, typefaces marked by both high performance and high style.

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

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

IOPscience is a unique platform for IOP-hosted journal content providing site-wide electronic access to more than 130 years of leading scientific research, and incorporates some of the most innovative technologies to enhance your user-experience.