Will recently posted a set of flowcharts made by Marylyn, Jason, and Tricia, to help choose which statistical analysis to use for nearly any situation. UCLA has a very similar chart with links to Stata code, examples, and annotated output for every method they mention. Also, check out their Stata help homepage and Stata learning modules. They're excellent resources for learning how to use Stata for data analysis!
What statistical analysis should I use? (UCLA Stat Computing)