"The link and the tag may be two of the most important inventions of the last 50 years". I keep telling people this.
very related: Interview with If:book's Ben in Library Journal: "Soon, books will literally have discussions inside of them, both live chats and asynchronous exchanges through comments and social annotation". I literally said this at Julia Flanders talk on Thursday. Except by discussion I mean commentaries. More on this soon. Much, much more.
Still, your peeps don't seem to listen. che. che. Bill and I feel your pain!