1. Social Sciences

1.1. Archaeology

Geographic Resources Analysis Support System Geographical Information System (GRASS GIS) - An open source, free Geographical Information System (GIS) with raster, topological vector, image processing, and visualization functionality. For Software and documentation downloads see Wiki, and newsletter

1.2. Economics

EcoSim - a C++ class library for modelling and simulation of ecological systems

GEMPACK - economic modelling software especially for general and partial equilibrium models. Commercial

LIMDEP - a complete package for estimating and analyzing econometric models. Commercial

RATS - a econometrics/time-series analysis software package. Commercial

1.2.1. Econometrics

gretl - Econometrics package (economic statistics)

LIMDEP - LIMDEP, by William Greene, is a general econometrics computer program for estimating linear and nonlinear regression models and qualitative dependent variable models for cross-section, time-series and panel data

Matrixer - Matrixer is a piece of software especially suited for teaching econometrics and doing medium-scale applied research

Microfit - Microfit, by Pesaran and Pesaran, is a program for analysis of econometric time-series data

OxMetrics - OxMetrics is the name of a family of software packages providing an integrated solution for the econometric analysis of time series, forecasting, financial econometric modelling and for the statistical analysis of cross-section and panel data

PcGive - PcGive is an interactive econometric modelling package providing estimation, forecasting and testing from linear regression and logit to likelihood based cointegration, simultaneous equations, general limited dependent variables, dynamic panels, GARCH, ARFIMA, X12-Arima

RATS - RATS is an econometrics/time-series analysis software package

RealStat - RealStat, an econometric automated valuation software using multiple regression analysis

SHAZAM - SHAZAM is a comprehensive econometrics package whose primary strength is the estimation and testing of many types of regression models

Stata - Software for statistics, graphics and data management with many econometric procedures and a broad range of user-contributed modules

TSP - TSP (Time Series Processor), is a general econometric software

WinSolve - WinSolve is a user-friendly package for solving nonlinear economic models. An evaluation version is available for free download

1.3. Geography

1.3.1. Environmental Geography

wmSpaceWeather - wmSpaceWeather shows environmental conditions in space (GPL)

Geo::Weather - Retrieves weather.com information

PHP Weather - Shows current weather on a Web page