iArt is a freeware program that can be used to download album art for your iTunes library. It allows you to choose what playlist (or your library) to get album art for.
You can then choose exactly what tracks you want music for, and then iArt will download covers for your music from Amazon! This program depends on your tags so having good tags usually gets better results. However, iArt will also work with music with missing tags, as long as the artist tag is there, it can attempt to find a match!
What’s new in this version
This version adds support for getting album art for your music through jpegs that are in the same directory as the music.
System Requirements: Windows 2000/XP and iTunes 4.5