intertwingly

I've started to take a look at pingback.  My first impressions are that it will take more lines of code to implement and will provide less value than trackback.  More on that when I complete my analysis.  Meanwhile, a few reactions to Hixie's whitepaper on the subject... I did not mean to imply that referrers are enough, all I meant to say was to those who did not appear to want to have two way linkages that they already had them.  All pingbacks and trackbacks attempt to change the signal to noise ratio.  Also trackback metadata can be stored in HTML comments, partially invalidating the flexibility and standards compliant issues identified in the whitepaper.