Monitor Twitter

How to monitor course twitter or course twitter search?
Either method below would work:

1. Add twitter gadget and/or twitter search gadget to your iGoogle.
2. Add twitter gadget and/or twitter search gadget to your own blog. See Course blog for the example: http://etc647.blogspot.com/
3. Download TweetDeck to monitor multiple twitter feeds. http://www.tweetdeck.com/beta/