What's the most useful Photoshop tutorial you've found online?

These are video, but they have helped me a lot.
http://revision3.com/pixelperfect/

You should check this out. You say you prefer text, but give it a try.

@Sarcasm I second that choice…but watch all of them, too.

I’m not exactly sure what you’re looking for in a Ps tutorial, but you may look at Photoshop Killer Tips, a podcast on iTunes. The guy who does it gives all sorts of useful tips that I use frequently, such as non-destructive dodge and burn. Crazy useful.

PsdTuts.com has tons of useful one’s I’ve found. I like text with screenshots

Mostly video but take a look at National Association of Photoshop Professionals NAPP They give some outstanding one-day seminars and are used to presenting/teaching effectively.

In the sea of tutorials I’m using this one the most

http://www.addictivedesigns.net

LATE!

iceflowstudios.com – or tutcast.com. Howard Pinsky is the main man when it comes to photoshop in my opinion, cause he’s been using PS since God knows how long ago.
Also – old but good is the Youtube “You Suck At Photoshop” series, which whilst not exactly professional, certainly taught the fundamentals of photoshop in a way that is simply not forgettable in any hurry – it’s funny stuff.