This is a ever-growing list of known Languages, Tools, U2 and PICK based books and documentation:

General


Techniques

Functional Programming

Domain-specific Languages (DSL)

Entity Relationship Modeling

Languages


Tools


Multivalue Databases


General Information

U2 Product Range

Documentation

White Papers and Case Studies

Books

Magazines

Web Sites

Social Networking

LinkedIn U2 Users Group

Non-Relational/NoSQL Databases


Relational Databases