Audacity is a free, easy-to-use audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems.
I've paid for expensive sound editing software, but I always come back to Audacity because it is so powerful and simple to use.
You can use Audacity to:
•Record live audio. •Convert tapes and records into digital recordings or CDs. •Edit Ogg Vorbis, MP3, WAV or AIFF sound files. •Cut, copy, splice or mix sounds together. •Change the speed or pitch of a recording.
Nvu (pronounced "N-view") is a WYSIWYG HTML editor intended to be an open source equivalent to proprietary software like Microsoft Expression Web and Adobe Dreamweaver. As a WYSIWYG editor, it is designed to be easy for novice users and does not require any knowledge of HTML or CSS to use.
Dropbox is the easiest way to store, sync, and, share files online. There's no complicated interface to learn. Dropbox works seamlessly with your operating system and automatically makes sure your files are up-to-date. Available for Windows, Mac, and Linux.
YouSendIt is the most popular online file sharing software that provides secure file transfer and allows you to easily send large files and large email attachments online, with outlook plugin and other productivity software . Replace FTP with a simple managed file transfer and document sharing service that is easy to use and deploy for online team collaboration.