Databases:

You can look up a specific weapon or technology on either of the following databases:

Britannica

World Book

EBook:

(simultaneous access)

World War I Weapons

Articles:

Weapons of the Western Front (National Army Museum)

5 Winning Weapons of World War I (American Society of Mechanical Engineers) 

12 Technological Advances of World War I (Doughboy Foundation) 

Artillery (National World War I Museum and Memorial)

Grenades (National World War I Museum and Memorial)  

Flamethrower (International Encyclopedia of the First World War)

A War of First: Beginnings of a World War

Videos

New Technologies for War (ABC-CLIO) 

War at Sea and in the Air (ABC-CLIO)