UK Pianos is one of the best online resources ever
I am going to buy a digital piano, and found several online guides. The Graham Howard's "7 things you must know before buying a digital piano" is by far the best guide I found. It is detailed, and explains a lot of things which are not obvious for someone who is going to buy a digital piano, like graded hammer action or levels of touch sensitivity. I got even more information when I asked Graham Howard directly by e-mail, his answers are always prompt and exact.
The site http://www.ukpianos.co.uk/ is extremely helpful, and is certainly among the most efficient online resources.
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