iPod nano

User Guide
Get to know the ins and outs of your iPod nano.
Earlier models
iPod nano (1st and 2nd generation).iPod nano (3rd generation).

How-To
Using your iPod to move your music to a new computer
Playing and managing content in iTunes
Restoring iPod to factory settings
About Shake in iPod nano (4th generation)
Syncing music
Syncing photos to iPod
Syncing videos
Changing the display language
Video Tutorial
Syncing Music With iPod
Genius
Genius Setup in iTunes
Understanding Genius for iPod and iPhone
Movie Rentals
Movie Rentals FAQ
Games
Syncing and troubleshooting iPod games
iPod Click Wheel Games FAQ
Spoken Menus for Accessibility
Enabling Spoken Menus
Troubleshooting
iPod issues? Try these five steps first: Reset, Retry, Restart, Reinstall, Restore.
About the battery charge status icon
How to reset my iPod
Charging the battery
iPod doesn't appear in iTunes
iPod is not recognized properly by computer when USB drivers are not installed properly or are out of date
Nike + iPod: Achieving a new workout milestone may cause your iPod nano to unexpectedly reset
Discussions
nano/nike+ question, will old kit work on new iPod nano?
Rebuilding iTunes Library from iPod nano
iPod nano: formats supported
iPod nano: auto sync (like the shuffle)?
Can i use my iPod Nano 3rd gen data cable with iPhone 2G?
iPod Nano: Unable to remove cord
iPod Nano: Multiple Users- Single iTunes
iPod Nano (3rd Generation): Unable to delete a rented movie
iPod nano (3rd Generation): How do I change the name of my iPod?
TC with a wired PC running XP can't see the HD
More

Source : www.apple.com