IMO micro-blogging (keeping aside Twitter) as a concept for business can really do wonders if delivered in a sensible manner. For this I would recommend you and your readers to check out cyn.in Desktop review at ReadWriteWeb. http://www.readwriteweb.com/archives/new_from_cynapse_activity_streams_on_the_company_desktop.php

cyn.in Desktop is integrated with cyn.in collaboration software that has core collaboration applications like wiki, blogs, workspaces, file etc. Users are created in cyn.in main site and their access rights are provided to them based upon their role in the organizational hierarchy.

Cyn.in Desktop (an Adobe AIR app) inherits user’s workflow (access rights) from main cyn.in site and delivers the activity stream to the authorized users. Activities e.g. If someone uploads a file in cyn.in main site, the other authorized user receives a notification from cyn.in desktop and can instantly comment (Tweet) on the content. Similarly another authorized co-worker can add new comment on the same content OR can reply to previous comment (Re-Tweet). The important thing here is that the comment and re-comment (Tweets or Re-tweets) gets structured in ‘Threaded Discussion’ form attached to the content container as “discussion”.

Amazing thing about cyn.in is here the tweeting and re-tweeting is happening around a ‘content’ and ‘context’ hence it adds to employee’s productivity by saving time for future revision of a context. Employees receives activity streams only from the people they are working with and have permission to collaborate with, this saves a business organization’s productive time and delivers Collaborative Organizational Knowledge.