Reference
It's one thing to have an encyclopedia and quite another to have software that combines a couple of those. Such software usually gives you more options and better and easier search engine. Check out this software category, read reviews on these education applications, take a pick, and download instantly.
ShaPlus QuranViewer
RJTDateCalc
eWork
LingoLessons
Traductor Gratis
Babylon Glossary Builder
SelamSoft Amharic-English Dictionary
Georgian Keyboard Layouts
Dr.eye Pro
Ultralingua
GradeQuick
SaebSoft Dictionary
SlovoEd Classic Italian-Russian
Davar
LearnVita
DirectX End-User Runtimes
Wiki Article Saver
English Urdu Dictionary
DTC Library
MB Free Numerology Dictionary
Desktop Assistant
JabRef
French & Armenian Dictionary
Nar Dictionary
Collins English Dictionary
FreeTranslator
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.