I do think there's something to the argument that any reasonable implementation of "Do Not Track" would just further entrench the companies who already have lar

I do think there's something to the argument that any reasonable implementation of "Do Not Track" would just further entrench the companies who already have large consumer traffic (Google, Facebook, et al), by virtue of the substantial privileging of first-party cookies over third-party cookies at that point. Now, you could argue, this is desirable -- after all, companies with large consumer brands have much more at risk in terms of doing unethical things with data (yes, I'm aware of the irony of saying that after the PRISM issue, but I think that only affirms my point). At the same time, does Google/FB/etc need any more help in dominating advertising than they already do?