Professional networking site LinkedIn and micro-blogging service Twitter have joined forces to enable cross posting of LinkedIn status updates or Tweets to ensure they reach the widest possible audience. The service is not yet available to all LinkedIn users (myself included) but is promised to be rolled out over the next few days.
Twitter co-founder Biz Stone and LinkedIn co-founder Reid Hoffman can be seen talking about “Twitter #In” here.
Allen Blue on the LinkedIn blog says:
The idea is simple: When you set your status on LinkedIn you can now tweet it as well, amplifying it to your followers and real-time search services like Twitter Search and Bing. And when you tweet, you can send that message to your LinkedIn connections as well, from any Twitter service or tool.
On Twitter, LinkedIn users will have the option of making all or selected Tweets available to their professional network. Certainly useful when it comes to filtering out the personal and focussing in on the purely professional personna projected through LinkedIn.
From a report by 
