| Sicher im Netz | Beratungsportal für Online-Sicherheit |
| OpenSSH | Encrypts all traffic (and passwords) to eliminate eavesdropping, connection hijacking and other network-level attacks. |
| Squid-Cache | free, open-source full-featured Web proxy cache |
| Congster | Preiswerter DSL-Zugangsprovider |
| Internet Toegang Provider | Internet Toegang Provider in Nederland |
| sipgate | Anbieter von Internet-Telefonanschlüssen. |
| Mozdev | Hosts 150 projects of the mozilla browser community. You can get informations and downloads. |
| Firefox Addons | Extensions and plugins from the mozilla website for download |
| Filezilla | Fast FTP and SFTP client for Windows with a lot of features |
| Mulberry | Free IMAP and other email protocols client with calendaring and scheduling for download for Mac OS X, Windows and Linux. |
| Cyberduck | Open source FTP and SFTP (SSH Secure File Transfer) browser for Mac OS X licenced under the GPL
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| Asterisk | A complete PBX in software for Linux, BSD and MacOSX. Does VoIP in many protocols, and almost all standards.
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| Skype | Program to phone for free via the internet. |
| Firefox Anleitung | Kurze Anleitung zum Firefox Browser für Einsteiger |
| Go to meeting | Webconference service which allows webconferences with sharing of the actual screencontents. |
| Arcor | Provider für Telefonanschlüsse und Internetanschlüsse |
| Stunnel | Free program to encrypt arbitrary TCP connections inside SSL (Secure Sockets Layer) available on both Unix and Windows |
| Wengo meeting | Service to set up free live audio and video conferences |
| Dsl-User | Anbietervergleich, Installationshilfen und andere Informationen für DSL-Zugänge |
| Sophos | Software and appliance solutions to protect networks from viruses, Trojans, worms, spyware and spam |
| Browser Market Share | Graphic showing the total market shares of Internet browsers. |
| Smart FTP | Download of a free FTP Manager. |
| Jabber | Open, ad-free consumer Instant Messaging Service |
| Spamhaus | Tracks Spammers, provides anti-spam protection for Internet networks and works to identify and pursue spammers worldwide |
| Zyxel | Manufacturer of routers, modems and switches with product informations and download of drivers |
