Libwww-perl is a collection of Perl modules which provides a simple and
consistent programming interface (API) to the World-Wide Web.  The main
focus of the library is to provide classes and functions that allow you
to write WWW clients, thus libwww-perl said to be a WWW client library.
The library also contain modules that are of more general use.

The main architecture of the library is object oriented.  The user
agent, requests sent and responses received from the WWW server are all
represented by objects.  This makes a simple and powerful interface to
these services.  The interface should be easy to extend and customize
for your needs.

WWW: http://search.cpan.org/dist/libwww-perl/