tedster - 7:42 am on Mar 13, 2011 (gmt 0)
Wish I could - it's not easy to find specific videos, especially when it's Matt Cutts and could be on any of several websites. I've already spent 30 minutes looking, and that's enough for now.
Trying to research this, I found that my memory was off on the timing. Speed became a small ranking factor in March 2010: [webmasterworld.com...] At that time, it was affecting about 1% of searches, not 10%.
I doubt that there will be official announcements if and when Google turns up that dial. This 2009 video on WebProNews [videos.webpronews.com] was the storm warning.
Three page speed effects I see that can affect rankings indirectly:
More page-views per visit
Fewer immediate click-backs to the SERPs
Happy visitors and customers posting links and/or social mentions
I have always - and I mean ALWAYS - been a fanatic about fast pages. I considered it my secret weapon when I develop a site because so few webmasters seemed to care - even in the dial-up days.
I've been helping some clients with page speed problems in recent months. The most common issues seem to be: