PortableApps – Portable applications and a suite to make it easier to launch and manage.
Audacity Portable – The best program around for editing audio files easily. This version can be installed without administrator rights, but if you are installing this at home, use the full version. Audio files can be easily edited, so do not worry about stumbles. Also, saving a file does not necessarily make it accessible, though; you must export (in the File menu).
SoundCloud – A great tool for embedding your audio into websites. Once you are done uploading the file, the embedding code can be inserted directly into most WYSIWYG html editors.