More than 200 volunteer historians, scholars and university students have contributed historical entries since the site's inception.

These blogs, not accessible to the public, typically allow many people to contribute entries that can be read by others in the organization.

Bing Maps users can also view and add "user contributed" entries to the map.

He has contributed entries to The Encyclopedia of the Vampire.

He also contributed several entries to the Tamil Encyclopedia (Kalaikalanjiyam).

Dr. Blaising has also contributed various entries in The Encyclopedia of Early Christianity, 2nd ed.

He has also contributed entries on jazz-related subjects to the Grove Dictionary of Music and Musicians.

Harvey contributed entries on fashion magazines, wigs, the "Natural Look," fashion designers, retail, and manufacturing.

He has authored a number of books on the subjects, and also contributed entries to the Encyclopaedia of Islam and other works.

She contributed entries to national and international reference works.