Twitter is a famous short messaging server. Twitter use OAuth protocol to allow applications to reuse its own authentication process (it means, if your are connected to Twitter, other applications can trust Twitter and let you in).
You need Net::Twitter package, with a very recent version (>3).
You need to register a new application on Twitter to get API key and API secret. See Twitter FAQ on how to do that:.
In Manager, go in
General Parameters >
Authentication modules and choose Twitter for authentication module.
Then, go in