Get Stata at Harvard: Link to the FAS downloads page for getting Stata on your computer
Introduction to Stata: An overview of Stata by Christopher Baum.
UCLA Stat Consulting Group - STATA Resource: The most extensive Stata resource on the web: includes descriptions of coding and statistical analysis techniques as well as an extensive FAQ section.
Stata Tutorial: Tutorial by German Rodriguez at Princeton, with great section on programming within Stata.
HKS Tutorial: Collection of training materials from HKS, with orientation towards public policy.
Basic Quick Start: Basic commands to get started with, from Vassar
Applied Econometrics in Stata: A great guide by Econ Department PhD student Ricardo Perez-Truglia.