One of the most wanted feature that Orkut lacked was privacy in sending scraps and conversations. This feature has been finally introduced by Orkut today. Now your scraps can turn into conversations with your friends and you can send private scraps for a completely private conversation! :)

Take a look at the screenshot below:
Orkut's New Feature - Conversations and Private Scraps [Orkut Updates June 2010]

You can read more from their blog here.

Other Links relating to Orkut Updates:

Update(June 20 2010): This privacy feature has been disabled temporarily.

Update(July 30 2010): This feature is reintroduced now.