Reference

Offers a social knowledge base where users can find answers to various questions.

Provides nationwide statistics on energy providers and electric companies across all 50 states.

Explore detailed information about temperate woody plants.

Provides information and resources about flags from around the world.

Offers professional people search services and contact information verification.

Convert milliseconds to date and time formats easily.

Provides a collaborative platform for sharing knowledge and information.

Uncover the details behind any phone number with ease.

Provides access to the United States sex offender registry for searching by name, address, city, or ZIP code.

Provides information and resources related to user experience design.

Provides international dialing codes and time zone information for countries worldwide.

Translate text and phrases between Russian and 240 languages for free.

Offers an online version of the Ozhogov Dictionary, a comprehensive resource for the Russian language.

Provides a comprehensive directory of U.S. military aviation designation systems, rockets, and missiles.

Explore historical geographic data and projects related to the Leeuwarden region.

Offers access to Kenya's census data, allowing users to search, discover, and publish datasets.

Download and print customizable calendars for 2026.

Offers a collection of historical documents and materials related to Soviet history.

Contribute to a comprehensive collection of knowledge about Austria.

Provides a catalog of cultural heritage sites and monuments.

Provides comprehensive information on naval ship classes from antiquity to the present.

Access South African legislation and legal resources online.

Provides access to a wide range of data resources and information.

Offers an extensive Urdu dictionary along with translation, transliteration, and social features.

Offers comprehensive information about the U.S. Constitution, including its text, amendments, and historical context.

Provides a variety of online calculators and reference tools.

Contribute to a comprehensive wiki about the Perry Rhodan universe.

Offers a community-driven platform to help users find information quickly and easily.

Search for library resources and catalog entries online.

Offers an English dictionary, thesaurus, and word finder software for various platforms.

Provides information about public holidays around the world.

Offers the largest digital collection of free African gazettes for preservation and access.

Explore and define Finnish slang terms and expressions.

Provides an online calendar for the year 2026, including holidays and week numbers.

Provides a comprehensive dictionary and translation resources for the Binisaya language.

Provides detailed comparisons and explanations of various concepts and terms.

Provides a simplified reader view of Wikipedia articles.

Offers a multilingual dictionary with synonyms and translations for over 650,000 words.

Explore definitions, synonyms, and antonyms for any word you need.

Provides comprehensive information on sizes of various objects and the units used to describe them.

Offers free downloadable calendars and information on holidays and important dates.

Offers a repository of important collections and historical documents related to the Cold War and human rights.

Explore comprehensive biographies of influential Indian figures.

Provides tools for converting units of measurement across various categories.

Convert between lunar and solar calendars and check lunar dates.

Offers a comprehensive encyclopedia of interesting facts and life pro tips.

Solve crossword puzzles and find anagrams with ease.

Offers access to the Russian State Archive of Scientific and Technical Documentation.

Offers a portal for purchasing and downloading historical maps of Europe.

Provides statistical data and information about Greenland.