gretl - homepage of gretl, the Gnu Regression, Econometrics and Time-series Library
Site Rank Data - View historical rank information of websites via time series charts.
SAFE TOOLBOXES - SAFE TOOLBOXES is an Excel add-in that enhances Excel capabilities to perform simulations...
SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
LIMDEP - LIMDEP is an econometric and statistical analysis software that is used by researchers, students, and professionals from all over the world.
Quantcast - Quantcast Corporation is a digital marketing company that provides free audience demographics measurement and delivers real-time advertising.