When is an extremely simple personal calendar program, aimed at the Unix geek who wants something minimalistic. It can keep track of things you need to do on particular dates. It's a very short and simple program, so you can easily tinker with it yourself. It doesn't depend on any libraries, so it's easy to install. You should be able to install it on any system where Perl is available, even if you don't have privileges for installing libraries. Its file format is a simple text file, which you can edit in your favorite editor.
The CentralNic Toolkit is CentralNic's system for instantaneous Registry-Registrar Communications. Registrars can use this system to register and modify CentralNic domain names in real time, with no delays for human intervention or e-mail processing. The Toolkit also provides advanced and efficient methods for searching for and querying domain names and whois records, and retrieving account information.
Date::Manip is a Perl module for handling Gregorian dates. Operations such as comparing two times, calculating a time a given amount of time from another, or parsing international times are all easily done. The library is oriented towards the type of operations people tend to think of rather than those operations used routinely by computers.
Business::Payroll is a series of Perl modules that provides an API for working with multiple countries' federal, state, and local taxes. It also supports calculating mileage reimbursement values and can handle adjustment entries. Currently it only supports the US in terms of countries and MO in its list of states. It should be relatively easy to enhance to support other countries/ states.
Business Oriented Framework (BOF) is a Perl application server. It uses SOAP, optionally secured with SSL, to communicate with the client. The client can use SOAP::Lite or the client module included in BOF, making it easy to connect to the server. User, group, and database data are stored in a framework database for authorization and validation.