Availability: Free Download
Comparable: SAS, SPSS, Stata
Past is free software for scientific data analysis, with functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series and spatial analysis, morphometrics and stratigraphy.
Past went through a complete redesign in 2013.
Past works under most versions of Windows, and a beta version for Mac is available below.
Availability: Free Download
Comparable: EndNote
Zotero is free and open-source reference management software to manage bibliographic data and related research materials (such as PDF files). Notable features include web browser integration, online syncing, generation of in-text citations, footnotes and bibliographies, as well as integration with the word processors Microsoft Word,LibreOffice, OpenOffice.org Writer and NeoOffice. It is produced by the Center for History and New Media of George Mason University (GMU).
Zotero is the only research tool that automatically senses content in your web browser, allowing you to add it to your personal library with a single click. Whether you’re searching for a preprint on arXiv.org, a journal article from JSTOR, a news story from the New York Times, or a book from your university library catalog, Zotero has you covered with support for thousands of sites.
Zotero collects all your research in a single, searchable interface. You can add PDFs, images, audio and video files, snapshots of web pages, and really anything else. Zotero automatically indexes the full-text content of your library, enabling you to find exactly what you’re looking for with just a few keystrokes.
Zotero can be installed as a browser plugin for the popular Firefox browser or as a standalone program with browser extensions for Chrome, Safari, and Firefox.
Availability: Free Download
Comparable: