Podsafe: http://en.wikipedia.org/wiki/Podsafe
Royalty Free Music for podcasters:http://www.musicalley.com/
Apple Links:
Garageband Hot Tips: http://www.apple.com/support/garageband/hottips/
Garageband Keyboard Shortcuts: http://www.apple.com/support/garageband/shortcuts/
Recording your Podcast: http://www.apple.com/support/garageband/podcasts/recording/
Tips for Podcast Fans: http://www.apple.com/itunes/podcasts/
iPod buying guide: http://www.macworld.com/article/143755/2009/11/ipod_buyers_guide.html