Cog is a themeable and modularized intranet homepage written in Perl. The aim is to make almost every aspect configurable via the Web interface to give the user the freedom of choice. It includes modules to search various search engines, add links, and display news items, and a simple todo list.
CommPort is a community portal system based on Perl and MySQL. Each user gets a personal portal page to which they can add their own "channels" or select from a growing list of pre-prepared local, national and international content. This allows any individual to always have a page of their own personal favourites in front of them. Channels may be either "active" with continually updated weather or news headlines or "passive" with collections of links. Each user can publish channels they've created for other users to incorporate into their own Portal. Locally created channels (administrated by a web-based interface) are also available in standard RSS/RDF format for integration with any other RSS aware system (e.g. MyNetscape, MyUserland, etc.).
Conflux allows the user (through the PHP-based frontend) to submit searches to be performed on common search engines. Searches are performed by a Perl-based backend and results are stored in a database (usually MySQL). Using Conflux, you can manage your past searches, better keeping track of materials you have found useful, and aiding you in submitting follow-up searches. Both searches and search results may be bundled together, permitting you to best organize your information how you see fit.
cthumb allows you to create Web albums of digital pictures with thumbnails, captions, and several different views of the collection, including (optionally) several languages and resolutions. An album is composed of a series of pages, each composed of a collection of pictures. You can have several annotations per picture, and can customize almost everything in the way the albums look on the screen.