Errbot is being used in a lot of different contexts: chatops (tools for devops), online gaming chatrooms like EVE, video streaming chatrooms like livecoding.tv, home security, etc. The goal of the project is to make it easy for you to write your own plugins so you can make it do whatever you want: a deployment, retrieving some information online, trigger a tool via an API, troll a co-worker,...

A Python extendable chatbot

Twirssi allows you to post to Twitter and Identi.ca from your favorite IRC client

making an IRC client with kamaelia