ChanandlerBong - 2:19 pm on Aug 4, 2011 (gmt 0)
that's all great but the real pertinent question they don't answer:
will blocking pre-fetching have any mid- to long-term effects on ranking?
Because that's the 64 million dollar question. If Google, in their infinite wisdom, decide they only want to play ball with the "fast web", there's nothing stopping them throwing "Site X blocks pre-fetch" into the cauldron with the rest of their algo.
Another small step towards a two-tier web. The big boys and the rest of us.