I have often been heard to say: "Ideas are Cheap", by which I mean to say that my admiration goes more with the implementation, the making real and tangible, of an idea than the idea itself. It's much easier to come up with something that would be cool and useful ("A solar powered ambulance", "a retractable and reusable parachute", "email on steroids") than actually design it, build it, realize it.
I believe that as much about my own ideas as about anyone else's. BlogBridge was supposed to be "an RSS reader done right".
I have a few wonderful ideas for new products, like "Twittepedia" which is an encyclopedia with 140 character definitions. Wouldn't it be nice not to be able to learn what "geometry", or "racisim" or "bernoulli effect" are without having to read a 10,000 words wikipedia article?
There, I just gave it away. Why? Because ideas are cheap, and building that service and making it successful is what really counts.
As it turns out, Mark Twain had the same idea. So you see, even the idea that Ideas Are Cheap is itself cheap. How meta.
"...or substantially all ideas are second-hand, consciously and unconsciously drawn from a million outside sources, and daily use by the garnerer with a pride and satisfaction born of the superstition that he originated them; whereas there is not a rag of originality about them anywhere except the little discoloration they get from his mental and moral calibre and his temperament, and which is revealed in characteristics of phrasing…
... in some degree, and we call it his; but there are others that contributed. It takes a thousand men to invent a telegraph, or a steam engine, or a phonograph, or a telephone or any other important thing — and the last man gets the credit and we forget the others. He added his little mite — that is all he did. These object lessons should teach us that ninety-nine parts of all things that proceed from the intellect are plagiarisms, pure and simple; and the lesson ought to make us modest. But nothing can do that…."