Answer:
I have a face, yet no senses. But I don't really care, because time is of the essence.
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
Once they sailed the sea, now they surf the web
I bind it and it walks. I loose it and it stops.
I am two-faced but bear only one. I have no legs but travel widely. Men spill much blood over me. Kings leave their imprint on me. I have greatest power when given away, yet lust for me keeps me locked away.
What never gets any wetter no matter how hard it rains?