Cell Phones Reviews - Reviews and comparisons between different cell phones. Five categories are rated: usability, connectivity, software, hardware and ergonomics.
UCLA Guide to Stata - UCLA Academic Technology Services website with a helpful guide to use Stata, including web books and videos teaching how to do research with Stata.
Data & Statistical Services - Princeton University - There are some very useful pdf presentations made from Prof. Oscar Torres-Reyna showing how to estimate and how to analyze Stata and R outputs from regressions (FE and RE panel data, logit models and others).