📚 Reference
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Listings (102)
Reddit's Ask Me Anything (AMA) subreddit hosts live Q&A sessions with experts, celebrities, scientists, and notable figures from around the world, creating unique interactive interviews.
Ask an Expert
WorldCat is the world's largest library catalog, connecting users to holdings of thousands of libraries worldwide. An essential tool for finding books, articles, and digital materials.
BibliographiesGoogle Scholar is a freely accessible search engine for scholarly literature, indexing articles, theses, books, and conference papers across all disciplines with citation tracking.
BibliographiesZotero is a free, open-source reference management tool that helps researchers collect, organize, cite, and share research sources. Features browser integration and bibliography generation.
Bibliographies
Biography.com is A&E's biographical reference site featuring thousands of profiles of historical figures, celebrities, scientists, and world leaders with detailed life stories and video content.
Biographies
Encyclopaedia Britannica's biography section features authoritative profiles of historical and contemporary figures, written by expert scholars and rigorously fact-checked.
BiographiesNotable Biographies provides comprehensive biographical profiles of influential figures across history, science, politics, arts, and sports, aimed at students and general readers.
Biographies
Project Gutenberg is the oldest digital library, offering over 70,000 free eBooks of classic literature and reference works whose copyrights have expired. A landmark resource for readers worldwide.
BooksellersOpen Library is an open, editable library catalog built by the Internet Archive, aiming to create one web page for every book ever published with free access to millions of titles.
BooksellersBetter World Books is an online bookseller with a social mission, selling new and used books while funding global literacy initiatives. Features millions of titles at discounted prices.
BooksellersThe official USPS ZIP Code Lookup tool allows users to find ZIP codes by address or city, and look up delivery information for any location in the United States.
CodesThe ISO 3166 standard provides authoritative two-letter, three-letter, and numeric codes for countries and territories worldwide, maintained by the International Organization for Standardization.
CodesHTML Color Codes is a comprehensive reference for web designers, providing color pickers, hex codes, RGB values, and color name charts for use in web and graphic design.
CodesBBC News World section offers in-depth country profiles and regional news covering politics, economy, history, and current events for nations across every continent.
Country ProfilesNations Online is a reference website providing detailed country profiles, maps, flags, and information on government, culture, and geography for every nation in the world.
Country Profiles
Yellow Pages is a leading online business directory, helping users find local businesses, services, and contact information across the United States with reviews and maps.
Directories
Google My Business allows companies to manage their presence on Google Search and Maps, helping customers find accurate business information, hours, and reviews.
DirectoriesYelp is a popular online directory and review platform connecting consumers with local businesses across restaurants, services, and retail, featuring millions of user-submitted reviews.
Directories
Merriam-Webster is America's most trusted online dictionary, offering word definitions, pronunciations, etymologies, and usage examples, along with a thesaurus and language games.
English Language Usage
Grammar Girl provides quick, friendly tips on grammar, punctuation, style, and word choice through a popular podcast and articles, making language rules accessible to everyone.
English Language Usage