concrete staining

I have been seeing some concrete staining on HGTV. How easy/hard is this? Does it work for older concrete that is not so smooth? How clean does the concrete have to be? How long does it last?
Steve
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Here are all your answers:
http://www.thestampstore.com /
Doug writes for several national concrete publications, provides an excellent school, and is quite knowledgeable about every one your questions. Look through the site for the tutorials.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Keep the whole world singing. . . . DanG

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