There are some great Bridge 3.0 (CS4) tutorials on the web to help you learn and use both new features and old. They can be hard to find, though, so here are links to a few that you might find useful.
Bridge updates, by Dave Cross:
http://www.photoshopuser.com/?page=cs4/videos&video=dave_bridge
The Complete Picture—New Features in Bridge CS4, by Julieanne Kost:
http://tv.adobe.com/#vi+f1483v1648
Using Adobe Bridge in Photoshop CS4, by Chris Orwig:
http://www.peachpit.com/podcasts/episode.aspx?e=05e2877c-a14f-4467-b929-bafac26ca573
Photoshop CS4 Getting Started—Getting photos from your camera, by Deke McClelland:
http://movielibrary.lynda.com/html/player/?id={CA9DCC7C-2CB3-4642-8C4D-E32319BCB6AD}&tc=0&height=676&width=880
Essential Bridge preferences, by Chris Owig:
http://www.peachpit.com/podcasts/episode.aspx?e=73d11025-db07-4a7c-a879-62295c32f83a
Adding file information, by Deke McClelland:
http://movielibrary.lynda.com/html/player/?id={5000B0D3-ADAB-4ACF-92F8-8A60EC30EF37}&tc=0&height=676&width=880
Using Review mode in Bridge CS4, by Terry White:
http://creativesuitepodcast.com/index.php?post_id=408454
Using Camera Raw 5 in Bridge and Photoshop CS4, also by Terry White:
http://creativesuitepodcast.com/index.php?post_id=383428#
New Photoshop and Bridge keyboard shortcuts, by Corey Barker
http://www.photoshopuser.com/cs4/shortcuts.html
And last but not least, we’ve got a few more good tutorials by Chris Orwig on the Learn Bridge CS4 channel on Adobe TV:
Introducing Bridge CS4:
http://tv.adobe.com/#vi+f1606v1001
Preview and compare images in Review mode:
http://tv.adobe.com/#vi+f1606v1004
Working with metadata and keywords:
http://tv.adobe.com/#vi+f1606v1003
Creating a web photo gallery:
http://tv.adobe.com/#vi+f1606v1002
