One of the best known Enterprise 2.0 services is the discussion service. It's hard to find a website that does not provide a forum to discuss several things. For an enterprise, it is very important to have discussion forums on their website. It is a good first level of support. People ask for help and other people can help by answering their questions. This can save money by providing a real helpdesk.
Discussions can also be used for collaborative work environments. If you set up an environment for a project, then a discussion forum can be a good place to discuss several topics. This way, different people can elaborate without the need to be in the same place.
With the discussion services, you have the following taskflows: