The CPAN shell (and module) automates or at least simplifies the building and installation of Perl modules and extensions. It includes some primitive searching capabilities and knows how to use Net::FTP, LWP, and certain external download clients to fetch distributions from the Internet. Then it automatically tests and installs them and their dependencies.
Pod::Manual is a module that gathers the pod of several Perl modules into a comprehensive manual. Its primary objective is to generate a document that can be printed, but it also allow to output the document into other formats (e.g., docbook). podmanual is a utility that uses Pod::Manual.
Webupdate is a script which lets you register Web pages and monitor them for updates. An email alert is sent to your local account whenever an update is found. It is also possible to register a pipe of commands to filter which content on the Web page should actually trigger an alert. The script can be used with crontab to get regular notifications whenever registered Web pages are updated.