Here's some links that I like to send out to people who have just unboxed their UCS system. What links do you recommend ?
First place to bookmark is http://www.ciscoquicklinks.com - maintained by Dan on our team. Has ballooned to thousands of links, but you can almost always find what you need there.
I think another good resource for people getting started with UCS out of the box is this series of "how to" videos that our engineering team has put together. Hands on demos that zoom in on various aspects of server and IO configuration: