The latest edition of the Communications of the ACM (Volume 51, Issue 4 - April 2008) includes an article on Getting to "we", which starts off by pointing out the misuse and mis-understanding of the term collaboration as well as the over use of the practice of collaboration when it is not proper for the need. The authors Peter Denning and Peter Yaholkovsky break down the tools needed for various knowledge needs into four categories: 1) Information sharing; 2) Coordination; 3) Cooperation; and Collaboration. The authors define collaboration as:
Collaboration generally means working together synergistically. If your work requires support and agreement of others before you can take action, you are collaborating.
The article continues on to point out that collaboration is often not the first choice of tools we should reach for, as gathering information, understanding, and working through options is really needed in order to get to the stages of agreement. Their article digs deeply into the resolving "messy problems" through proper collaboration methods. To note, the wiki - the usual darling of collaboration - is included in their "cooperation" examples and not Collaboration. Most of the tools many businesses consider in collaboration tools are in the lowest level, which is "information sharing". But, workflow managment falls into the coordination bucket.
This is one of the better breakdowns of tool sets I have seen. The groupings make a lot of sense and their framing of collaboration to take care of the messiest problems is rather good, but most of the tools and services that are considered to be collaborations tools do not even come close to that description or to the capabilities required.