DBIx::Browse handles the browsing of relational tables with a human-like interface via the Web. It transparently translates SELECTs, UPDATEs, DELETEs, and INSERTs from the desired "human view" to the values needed for the table. This is the case when you have related tables (1 to n) where the detail table has a reference (FOREIGN KEY) to a generic table (e.g., Customers and Bills) with some index (typically an integer).
Hailo is a fast and lightweight markov engine intended to replace AI::MegaHAL. It has a Mouse (or Moose) based core with pluggable storage, tokenizer, and engine backends. It is similar to MegaHAL in functionality. The main differences (with the default backends) are better scalability, drastically less memory usage, an improved tokenizer, and tidier output. With this distribution, you can create, modify, and query Hailo brains. To use Hailo in event-driven POE applications, you can use the POE::Component::Hailo wrapper. One example is POE::Component::IRC::Plugin::Hailo, which implements an IRC chat bot.
WebDyne is a dynamic content engine for Apache or FastCGI servers such as lighttpd. It allows Perl code to be linked or embedded into HTML pages, selective rendering of HTML sections within pages based on logic, and much more. It supports features such as templating, and selective caching of dynamic content to minimise server load and increase throughput.
Monotone::AutomateStdio is a Perl library module for accessing Monotone's automate stdio interface. Monotone is a distributed, change-set based SCM system. It has a mode where commands can be sent to it via STDIN and output read from it via STDOUT. Monontone::AutomateStdio makes use of this facility to provide the Perl programmer with a programmatic interface to Monotone.
AI::Prolog is a predicate logic engine implemented in pure Perl. In predicate logic, instead of telling the computer how to do something, you tell the computer what something is and let it figure out how to do it. Conceptually, this is similar to regular expressions. The AI::Prolog distribution contains a Prolog shell called aiprolog and two short adventure games, spider.pro and sleepy.pro.
TCB::Library is a DBIx::Frame object written to keep track of library books at the TCB Group at UIUC. It provides a Web interface for adding books to the library, for users to check out and return them, and for reminder messages to be sent out periodically to list what books are checked out. This is actually a fairly basic function of research groups, but doesn't have a standard software package.