Are you looking for an option for collaborating with co-workers using a microblogging site similar to Twitter, but want privacy that you cannot get on a open social network? Check out Present.ly. Present.ly allows organizations to collaborate in real-time, share documents, and communicate via mobile devices without the entire online world seeing what you are doing.
Check it out here.
This week, I was searching for video hosting / sharing options with privacy options. I found several references to VidMe. Everything I read about VidMe looked promising, including their option of preventing others from forwarding privately marked videos.
"(V)ideos shared using VidMe work only for the intended recipient and cannot be forwarded, downloaded or become viral without the video owner’s approval…Links to videos shared using VidMe work only for the intended recipient and become inoperable if they are forwarded to anyone else."
Unfortunately, when I visited their site this week, I found a message stating that as of 10/12/10, Vidme has disabled the uploading of videos and that all videos have been permanently deleted. I cannot find any more information on the web about the reason for the shut down.