Restart iTunes after a set time.

I like the idea of the iPhone version, which lets you play songs on your iPhone from your mac.

Crossplatform iPod manager

Instructions for Chrome, Firefox and Safari.

Stream your iTunes Library to your iPhone, or your other computers, or to other users. Works just beautifully over WiFi, but you need the patience of a saint to use it over 3G. Very nice interface on the iPhone. One flaw: it took over an hour to scan my library, and when it had finished, only managed to find 10k of my 15k songs. (Update: it seems to be slowly adding more songs - up to over 11k now, so I'm guessing it'll have the lot eventually).

"ScrobblePod is a Last.fm music scrobbler for Mac OS X which handles songs played both in iTunes and on your iPod."

Prettify iTunes.

A little helper app for iTunes.

Wowsers.

Some seriously stupid changes to Last.fm: no more Audioscrobbler plugins, replaced by an application, and friends now have to be approved (so you can't just add a stranger with good taste to see what else they're into).

"Thrupp makes it stupidly easy to get albums from your iTunes library to your MP3 player or phone. Drag music from iTunes to the Thrupp window to copy it to your player."

For those who want an iMac in their living room?

iTunesBPM updated. (It lets you tap along to the music to set the BPM).

Cover art browser for iTunes, rather spiffy.

Perfect for mix CDs and live albums.

accessTunes makes it easy to access your music anytime, anywhere. accessTunes starts sharing your iTunes Music Library as soon as you turn on your computer, making it available as a shared iTunes library on the local network, and accessible from anywhere

Better remote control of iTunes.

iPodDownload mirror site (it's a plugin for importing from an iPod to iTunes, but looks to be slicker than existing options)