Useful and free software

• MiKTeX, free implementation of TeX/LaTeX.
• Texmaker, a free cross-platform LaTeX editor.
• LyX, a WYSIWYM LaTeX editor.
• PSPad, a freeware programmer's editor.
• Notepad++, a free source code editor.
• FileZilla, a free FTP solution.
• Sumatra PDF, a PDF (and more) reader for Windows.
• Google Chrome, a free web browser.
• Mozilla Firefox, a free web browser.
• Spotify, Musikdienst.
• Dropbox, a cloud-service.
• Wuala, a (secure) cloud-service.
• BoxCryptor, encrypts files.
• 7-Zip, a file archiver with high compression rate.
• R, a language and environment for statistical computing and graphics.
• Dynare, solves rational expectations models.
• GIMP, the GNU Image Manipulation Program.
• Inkscape, an Open Source vector graphics editor.