For fundamentals ...
For lots of useful info on Forex, particularly for noobs...
For independent reviews on trading systems, brokers, etc ....
A very good Forex Blog site, with something for everyone. I have got to know Erron quite well, through countless email exchanges and have no hesitation in recommending his site. He has produced an excellent course called "Price Action Engine" which I think is great value for money.
For a reliable and easy-to-set-up VPS Service (the one we use for EA testing - thanks to Lars for the recommendation)
Forex trading simulator software
This is definitely worth the money, if you're looking to test your trading skills and systems in fast-time. Simply awesome! Only drawback is that you can't just import your Metatrader indicators but they do have some of the more common indicators already loaded.
We use the services of Xpwork to protect some of our products.
I have known Coders Guru for many many years - not only is he a great guy, he provides an incredibly good service (he also helps me with some coding projects when I'm too busy)..
MQL Patriot protects your MQL project by server and DLL. No hacker can decompile your ex4 anymore.
Our preferred broker is GKFX. We have found them to be very reliable, have fixed spreads and have been ideal for using the Advanced News Trading EA.