Gtools - a suite of packages for hashing and quickly processing large datasets
Coefplot - visualizing regression coefficients in Stata
Tokenizing local macros in Stata
Graphing Distributions
R for Data Science
R Cheatsheets
R Markdown
RegEx101 - Regular Expressions Helper
HTML Color Codes
Visualizing Causal Methods
Visualizing HLM
Videos on Model Dependence and Matching Strategies w/ the Problem of Propensity Score Matching (Gary King)