A little while ago I stumbled across the sun blog RSS. They've done a good thing there. It's highly random content, but it makes a good impression.
I had not realized how far they had come with the Sun Ray, and with Sun's Green push. Their energy efficiency story is very widespread, with both their server efficiency analyses and the Sun Ray. It caught my eye because I've worked with similar things before. The power demands are far less than for a PC, and for the large body of clerical applications you do not need or want something like a PC.