Economics was developed to deal with atoms, not bits (paraphrased from NicholasNegroponte). Some very fundamental assumptions present in what people think of as "economic laws" simply don't apply here:
The inapplicability of "conventional economics" to these issues is often overstated. People who are really interested in this kind of thing might look at: http://www.stern.nyu.edu/networks/site.html (warning--although this site has lots of useful information, it also has really annoying animated icons and sound effects, so be prepared!) --MatthewWilbert
I dunno, when people say, "This time it is different," I think automatically, "Hold on to your wallets." -- Anon