The Robin Hood Index is conceptually one of the simplest measures of inequality used in econometrics. It is equal to the portion of the total community income that would have to be redistributed (taken from the richer half of the population and given to the poorer half) for the society to live in perfect equality.

The Phillips Curve is a graphical representation of the inverse, or negative, economic relationship between the rate of unemployment (or more precise, the rate of change in unemployment) and the percentage rate of change in money wages.

The Laffer Curve is a curve which suggests that for a given economy there is an optimal income tax level to maximize tax revenues. The Laffer Curve shows the relationship between tax rates and tax revenue collected by governments.

The Gini Coefficient is a way to measure equity and is derived from the Lorenz curve.

The Gini coefficient is defined graphically as a ratio of two surfaces involving the summation of all vertical deviations between the Lorenz curve and the perfect equality line (A) divided by the difference between the perfect equality and perfect inequality lines (A+B).

The Lorenz Curve is a graphical representation of the proportionality of a distribution. It represents a probability distribution of statistical values, and is often associated with income distribution calculations and commonly used in the analysis of inequality.

K-Lite Codec Pack is a collection of codecs and related tools. In general, codecs are needed for encoding and decoding (playing) audio and video.

Codec is short for Compressor-decompressor.

SnagIt is a tool that lets the user to capture, edit, and share exactly what is shown on the screen.

Images communicate better than words alone, and many times it is easier  to explain yourself with a screen capture. SnagIt allows to share a screen capture in just one click.

PSPad is a freeware programmer's editor for Microsoft Windows operating systems. It can be used as a mere text editor, but it provides many features especially suited for programmers.

Apache, more precisely the Apache HTTP Server, is an open-source web server developed for modern operating systems including UNIX and Windows.

It has played a key role in the initial growth of the World Wide Web. Since April 1996 Apache has been the most popular HTTP server on the web. It has lost its position mainly to the Microsoft Internet Information Services (IIS) since March 2006 and to the .NET platform used by some large blog providers, but it still serves roughly around 50% servers worldwide.

MySQL-Front, now ofiically called SQL-Front, is a front-end interface for the popular MySQL database. It allows the user to manage and administer databases from an easy to use Windows interface, rather than via the command line.