The resources pages contain various sources of information on Quipu and Data Vault modelling.
Our Whitepaper (PDF): QUIPU 1.1 Whitepaper final
More documents and Quipu user manuals are available for registered users (free) in the Resources > Documentation & User manuals section.
The Quipu forum on Sourceforge requires a user login (registered users only, registration is free).
Dutch blog on BI architecture using Quipu at Waterschap De Dommel (Dutch water board)
Various blog entries by BI Future on using Quipu, sample models (Northwind) and groovy templates
YouTube Dan Linstedt channel
Data Vault modelling, Data Vault Institute
Data Vault certified training, Genesee Academy
BI Academy, our training partner