The most widely spread tools are subscription services, wikis and internal blogs. However even the least widely used such as virtual worlds, podcasts, prediction markets and mashups are entering the enterprise internal landscape, says McConnell

The more the intranet becomes 'the way of working', the higher the integration of 2.0 tools. By far, the primary barrier is the lack of appropriate organisational culture.

Stephen Dale, dir. Semantix UK 'Collaboration and communities: communities of practice in local government' (presentation) 'Creating blogs is an obvious example of a way in which communications can be improved through social media, innovative use of online video and will surely follow as another means of getting the message across in a useful and interactive way. Citizens will be able to vote on online petitions to voice their views on important local issues"

Consultations should be run through wikis, enabling anyone with interest to have their say and to contribute. An important part of this culture change will be giving local government officers the responsibility for engaging with online social networks and becoming an integral part of the social network as opposed to being part of an unresponsive and faceless regulatory authority.

Also see Dale's profile http://tinyurl.com/yt9qek and his blog Dissident http://dissident.typepad.com/