TriggerX

A Light Trigger Pattern for Force.com with Event and Recursion Control

Force.com-Order-of-Execution

Diagrams to visualize Force.com's Order Of Execution for Apex and Visualforce

apex-VIES

EU VAT Number Validation for force.com

Email2Apex

Execute Apex from Inbound Email

apex-base

Base classes for DRYer force.com apex code