Hey Craig, I have the time now so I'll briefly go over it. However, as not to go on for hours and hours, I'd also like to give you a link to the site. If you read the mission statement and story you'll soon find out what it's all about. To shorten it:
TWLOHA is a non profit organisation that seeks to prevent suicide and self harm. That's the very basic truth. They tour with bands and sell shirts and just talk to people on stage, and spread the idea of love and that people care about your situation. Besides this, they take in messages online and respond to thousands per day, at times getting suicide notes and things similar to that. And in the past, though I've never self harmed, I've found this to be extremely helpful; just the idea alone makes things so much easier, knowing that someone cares and that there is hope.
And just to add in.. a lot of people talk about how the charity is bad because they haven't had financial records on the site.. but I'd just like to describe now where the money basically goes, so you don't get the wrong idea. They said that they only donate something like 20% of the money they receive, and that goes to helplines and treatment centres (Such as 0800-SUICIDE and others). The rest goes towards making the shirts, keeping their centres open and going on tours such as warped tour and other huge events. Sorry to have went on a little there, but I didn't want you to think it's a scam.
I can't really do justice to them by telling the story myself, so here it is as written by them..
http://www.twloha.com/vision/
I'm sorry it's so long, but honestly.. read it. It's one of the most moving things I've read and through this charity I was actually led to becoming a Christian a few years ago.. it really is fantastic!
Tell me what you think Craig, and I'm glad you asked me!