klark0 - 10:54 pm on Jul 5, 2012 (gmt 0)
Well Page speed is a factor, but no one knows for sure how much it matters. If you got alot of other things going in your favor, then it probably won't make much a difference. In highly competitive spaces though, every little bit matters.
I just spent the holiday yesterday, switching over all my static objects (images, css, js, downloadable) to a CDN. My load time is now between 1.5 and 3 seconds depending on where in the world you are. There's a few other reasons to do it besides SEO, so I highly recommend it. And CDNs are surprisingly cheap. I have alot of css images, so I plan on doing a sprite or two ..that should shave some more time off.
I also took the time to 100% validate every single page on W3 for HTML5. Validation almost certainly doesn't matter, but it's nice to have ...especially since one of my competitors have gone to the trouble of doing the same.