iTunes Add-In Mac Informer: Find cover images for your iTunes albums and e-books and add them to the albums' tracks or to the e-book.... Add album artwork to any song within your iTunes library.

Add as PDF to iTunes

Doug's AppleScripts

automator.Add_Files_to_iTunes

free

WinX

WinX DVD to iTunes Ripper for Mac is a free DVD ripper...

WinX DVD to iTunes Ripper for Mac...can then play on iTunes and add to your devices

free

Thomas Meyer

iTunes Tag Sort gives you the possibility to write or edit tags from multiple iTunes tracks...

iTunes tracks at once. TagEdit allows to add...multi selected tracks in iTunes. Tag Copy

free

Cody Williams

Simple, colorful, fun and (slightly) useful for visualizing...

visualizing your music in iTunes. The colored cubes represent

free

The Omni Group

This add-on contains templates for OmniGraffle and AppleScripts for iTunes. Put together a playlist...

add-on contains templates for OmniGraffle and AppleScripts for iTunes...to CD in iTunes, pick

crispSofties

iPod.iTunes evaluates the source for content (songs, videos, podcasts and/or playlists) and only adds missing...

synchronization iPod.iTunes...synchronizations (add-synchronization). iPod.iTunes can

Apple Inc.

Apple Inc.