Here’s the RSS feed for the Softimage Knowledge Base on autodesk.com:
http://usa.autodesk.com/adsk/servlet/syn/rss?siteID=123112&id=2334144&linkID=12544120
You can subscribe to the KBs for other products like Maya, Mudbox, and MotionBuilder. Go here to get the RSS feeds for those and other products.
I subscribe to the RSS feed for AutoCAD, because they always have the latest info on licensing.