We have recently upgraded to WordPress 3.1 at Drew. Here is a short list of what’s new and improved.
Admin Bar
You will notice the admin bar at the top of your screen when you are logged in. With it, you can quickly make new pages, edit existing ones and move to the sites you have access to. Don’t like the bar? Turn it off in your settings. 
New link editor
Making links just got easier. You no longer have to copy and paste urls to make them, you will be able to search your site for a page and click on it to make the link. When making a link, you will see an option to put in a url and title, or you can click on the text ‘Or link to existing content’ to show other pages on the site, double click one to make a link.
You can find a complete list at WordPress.org.