I wrote in the title that is software for "Everybody" because thos programs can run on any operating system, so not just Linux but Windows and Mac OS X as well.
- Office automation: OpenOffice.org, o NeoOffice its Mac OS X version
- Internet Browsing: Firefox
- Email: Thunderbird
- RSS Reader and Newsgroup: Thunderbird
- Calendar, Todos, etc...: Sunbird, Thunderbird with Lightning plugin
- Graphics Design and Photography: GIMP