Your service operation isn’t one-size-fits all, so your IT service management solution shouldn’t be either
The Vivantio Platform allows you to focus on the IT service management tools that make sense for your organization’s unique service model: from incident, problem and change requests, to service requests, client knowledge and asset management
A cross-platform notification daemon written in Ruby. Can be petitioned by an arbitrary application (local or remote) to activate notification plugins. Plugin examples include a popup dialog, a syslog entry, or an email alert.
Autocheck is a distributed, extensively configurable, systems monitoring tool for unix'es written in Perl. It includes SMS and emailnotification and a lot of checks.