As with many Web2.0 tools the emphasis on communication and collaboration means that many types of social software are becoming recognised as valuable learning tools that can be particularly useful to assess contributions of individual learners to group outcomes. Blogs can be used in this manner and have the potential to become powerful tools to provide evidence of deep learning and reflection.
Community blogs can be used to document progress towards the completion of a group task and the chronological aspects of the software are helpful in monitoring progress, achievement and contributions. Consideration of the extent to which authentication is required and indeed how it's managed will determine how this type of software is deployed within an institution.
Blogs provide an ideal solution when the documentation of learning processes is needed, often a challenge for institutions and potentially quite "high risk" in terms of moderation and verification. As with other social software the "signing in" requirements mean that activities are well documented and can be monitored relatively easily. Comment facilities provide a mechanism for peer assessment - provided good guidelines and support for the whole process is in place.
Blogs can be used as a journal and to assist personal development planning, documenting progress towards the achievement of goals. The ability to easily upload multimedia to web-based applications is of great value in many areas of the curriculum e.g. hairdressing students can take images of both the end result and also the processes that were involved. This could be applied in the same way in food production or the construction trades.