HOW CAN I DO THAT

Question

WHY I CAN NOT FIND GOOD INFORMATIONS ABOUT C# ON THE INTERNET. DAMN!!!

I want to :

1.
if webBrowser1 url = google.com then go to facebook.com

2.
if textBox1 = "google.com" then go to facebook.com

3.
if webBrowser page contains "blablabla" then go to google.com

how can I do these things?? what code should I write to do these.. help me please.

I want to tear up my pc and I want to curse Now. Shit..

And please suggest me a GREAT SOURCE/E-BOOK ETC. TO LEARN C# perfect.

Cheers
"Ninja"