http://becomeablogger.com/roadmap/full-version.html This page is a fantastic reference for all things Web 2.0. Gideon & Yaro have packed their site full of valuable and FREE multimedia such as video tutorials, audio ebook and transcripts absolutely packed with tips for getting your message out and getting paid for it at the same time.
Google Notebook is a great way to take notes, especially as you're researching online. There's a cool Firefox add-on, too, that makes it even more convenient to use. http://google.com/notebook
Picnik is a free online photo editor, so you can get great pictures for your blog posts. http://picnik.com
Ustream is a great way to do live video streaming online. All you need is a webcam and a free account with them and they do the rest. You can record the live broadcasts for later playback, and there's a chat window so viewers can become participants. You can even cohost your show with another person. http://ustream.tv