Is a useful website to start with. They set the standards for the web and the web content etc.
If you can't seem to get on with the tutorials there, personally... i'd google what it is you are after. So say you need a tutorial on css or php or photoshop, there are millions of these tutorials. Google "css tutorial" and you'll get lots of results, find a site, see if you can understand the tutorial style and away you go!
You could always download ebooks as well. I've got a subscription to safari books online, but that is around £35 a month, can't remember the cost in $$ sorry.
I don't have any other links I could share with you sorry. I mainly just use what I find online or use safari books.
I'm sure others can be of better help to you on here :)