Net::Nessus::XMLRPC is Perl interface for communication with the Nessus scanner over XMLRPC. It lets you start, stop, pause, and resume scans. It can display the progress and status of scans, download reports, etc.
Groupware that lets you share projects, calendars, files, and email online.
A GNU/Linux rescue CD that comes with Rescapp, a nice wizard that will guide you through your rescue tasks.