Easel.ly: Drag and drop a vheme (Visual Theme) onto the working area, easily add graphics and text, change backgrounds to create visually appealing graphs, charts and displays. This site is very user friendly. Work can be saved using the free sign up feature.
Soundcli.ps is a free sound library which allows you to save files for future use. If you set up a free account you can store your clips in your account and use them for different types of presentations. If you don't set up an account, you still have the ability to download these short sound clips. There are over 10,000 sounds to choose from.