Well, MSDN is pretty good and useless at the same time, though the framwork
samples were, and still are, invaluable both to get started  and as a reference.

Many dev sites to get you up to a certain level C-sharpcorner.com is probs the
best, and there's GotDotNet.com and there the various MS web  apps to get you a
bit deeper.

And these lists for when you get stuck.

Books ... I haven't got any except for some old ones.
I have flitted through some at bookshops but find them pretty much useless,
chapters and chapters just waffling on about easy stuff just to get you the the
2 pages you want the book for.
Thats what they do, they just dilute a few pages of good stuff into a whole book
full of waffle.
No wonder Wrox went bust if thats what they were up to.

Though I would like to have one big thick one full of heavy duty control stuff.

Code is the way to learn.

Just wish there was more available and a fair bit deeper on some specific stuff.

Maybe I'm wrong about books  ? I don't know, I can't afford them !