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Mineral and gemstone descriptions for reference study

A German-language full-text library and historical reference

A biological-data resource portal from SIB

Artist-owned stock photos and footage with tiered licences

See typefaces identified in real website examples.

Computational queries across mathematics and factual topics

A wide subject reference to West Virginia

Online room layouts with furniture and materials

AI hairstyle try-on that shows haircuts and colours on your own photo.

A multilingual encyclopedia with a language-aware search

Related English words for revising a draft

Math and electrical calculations in a compact tool directory

Chemical calculations with balancing and molar-mass tools

An independent reference for Steam catalogue and activity data

A configurable vault for credentials and reference data

Histories of English words and their earlier forms

Interconnected reference on Victorian literature and culture

Element information with history and periodic trends

Biographical lookup with period and occupation filters

Structured knowledge connected across Wikimedia projects

Scholarly search with author, publication and date controls

Find preserved research datasets with citable records

Technical data and calculations for engineering study

Read and compare constitutions by topic