Lightroom 3 has been out in the wild now for just about a month now. If you have questions or need a little training assistance here are a few places to look.
The National Association of Photoshop Professionals (NAPP) has an excellent Lightroom 3 learning center available at http://www.photoshopuser.com/lightroom3 and you don't need to be a member to access it (although I heartily recommend you join!).
Adobe has quite a few resources available as well:
- Lightroom 3 Help: http://help.adobe.com/en_US/Lightroom/3.0/Using/index.html
- Lightroom Help and Support: http://www.adobe.com/support/photoshoplightroom/
- Lightroom Getting Started: http://www.adobe.com/support/photoshoplightroom/gettingstarted/index.html
- Learn Lightroom 3 on Adobe TV: http://tv.adobe.com/show/learn-lightroom-3/
And don't forget to check out the resources in the Interesting Sites over in the sidebar of this site!