Glossary
What is a document library?
A document library is the organised store of files a portal publishes: policies, statements, reports, contracts. A file is uploaded once and used wherever it belongs, and you can see everywhere it appears before you change or remove it.
Still deciding
See the terms as features
The glossary explains the vocabulary. The features page shows what each of these looks like in a portal you run yourself, and the pricing page shows what it costs.