To work together, especially in a joint intellectual effort.
To cooperate treasonably, as with an enemy occupation force in one's country.
Are we working together or co-operating treasonably ?
What is Collaboration ? Collaboration is a recursive process where two or more people or organizations work together in an intersection of common goals — for example, an intellectual endeavor   that is creative in nature  —by sharing knowledge, learning and building consensus. Most collaboration requires leadership , although the form of leadership can be social within a decentralized and egalitarian group.  In particular, teams that work collaboratively can obtain greater resources, recognition and reward when facing competition for finite resources.  Collaboration is also present in opposing goals exhibiting the notion of adversarial collaboration, though this is not a common case for using the term.
Virtual Collaboration Spaces Collaboration spaces influence our actions and impact the world around us – the greater the reach, the more profound the impact
Asynchronous vs Synchronous Email, Wikis, Blogs, Facebook, Youtube .... Instant messaging, audio conferencing, video conf, Web conferencing, Virtual 3D worlds