In "BT Richard's" post, as previously mentioned, he discusses examples of Internal and External social media use and wonders if a better approach couldn't be found to provide more of a One Stop Shopping (my words) experience.
They've developed an internal version of Twitter, but employees also use the real Twitter (external in reach), including his team! What do they do with it? Well, the use Grouptweet, ideal because they are in large a remote workforce! In Richard's words they "can bond and share on an on-going basis." He is sure it will have a "positive effect on team dynamics". They also use Twhirl, a desktop client that makes for more of an email experience. I beam when I read, "I think this is a really good example of how the intranet has become more than just web pages behind a firewall."
BT also launched a full enterprise social network and is intelligently incorporating/integrating content from Twitter and Blogs... so that a profile can truly reflect the person and their thought contributions. Not sure how these integations relate to the complaint of multiple versions (internal/external), but I'll let you know after I speak with him and find out!

