Site Rank Data - View historical rank information of websites via time series charts.

gretl - homepage of gretl, the Gnu Regression, Econometrics and Time-series Library

AdClarity - Optimize Display Advertising campaigns with the AdClarity Marketing Intelligence Tool for Advertisers, Agencies, Publishers, Ad Networks,

SAFE TOOLBOXES - SAFE TOOLBOXES is an Excel add-in that enhances Excel capabilities to perform simulations...

Quantcast - Quantcast Corporation is a digital marketing company that provides free audience demographics measurement and delivers real-time advertising.

LIMDEP - LIMDEP is an econometric and statistical analysis software that is used by researchers, students, and professionals from all over the world.