InOS X Lion, to switch among applications, use the Command-Tab key on your keyboard; to switch between windows of the same application, use Command+~ (tilde, the key to the left of 1 on the numbers row).

LLR 05, U of Wisconsin-Whitewater, iCIT, Jerzy (George) Jura; screencast Cover background image from Flickr by Tambako the Jaguar, Creative Commons-Attribution

A few quick tips for viewing files in the Finder, as adjustable size icons, lists, columns, or in ScreenFlow view. Tips on previewing and opening files in default and non-default applications, and on navigating the folder structure.

Let Lion Roar! (LLR) Mac OS X Lion Tips & New Features, LLR 01, U of Wisconsin-Whitewater, iCIT, Jerzy (George) Jura; screencast Cover background image from Flickr by Tambako the Jaguar, Creative Commons-Attribution

This video shows that in Lion you cannot remove items from your Finder's Sidebar by dragging them off (as it worked in Snow Leopard). In Lion, rght-click pop-up menu + select Remove from sidebar, or Cmd + drag.

Let Lion Roar! (LLR) Mac OS X Lion Tips & New Features, LLR 01, U of Wisconsin-Whitewater, iCIT, Jerzy (George) Jura; screencast Cover background image from Flickr by Tambako the Jaguar, Creative Commons-Attribution

Resume feature in Lion is quite flexible: beyond the all-or-nothing approach, which allows users to turn the feature on or off for ALL applications on their computer, it's possible to get more control by using the modifier keys (on one's keyboard).

Part of screencast series: Let Lion Roar! Mac OS X Lion Tips & New Features.