Aviary - Myna

Super great online audio application that allows you to create your own mix downs from your own music, their extensive library or record your own voice and/or instruments. Like a streamlinned version of Garageband.

Scribd

If you go to www.scribd.com and create an account you can upload various documents such then get an embed code. This allows you to so upload the likes of a word document and be able to see it in its entirety on your blog!