Open UC Framework (openucf) is a unified communication server which supports telephony, presence, instant messaging and contact management.
Skysiss.com - IM bots and applications
Skysiss Skype, Jabber, Whatsapp IM bot assistants allow you to send messages to other IM. Replacement for your Weather application, Calculator and many others. Skysiss bots work directly from you favorite IM client.