Anti-Virus for PCs
AVG Free Anti-Virus
Microsoft Security Essentials
Internet Browsers
For the PC: Maxthon (the world’s most popular PC browser that you’ve never heard of),
Chrome, FireFox, Safari, and Opera
For the Mac: Safari, FireFox, Chrome, and Opera
Photo Editing
PC: Paint.NET
Paint.NET Instructions Simple (pdf) and Paint.NET Instructions (pdf)
Mac: Seashore
PC and Mac: Thunderbird
SFTP/FTP
PC and Mac: FireFTP (requires FireFox browser | donation requested on first use)
PC and Mac: Cyberduck (open source FTP, SFTP, WebDAV, Cloud Files, Google Docs & Amazon S3 browser for Mac & Windows | optional donation)
Office Productivity
PC and Mac: LibreOffice (may be used along-side or instead of MS Office - formerly OpenOffice)