Reno - 2:00 am on Jan 7, 2011 (gmt 0)

Refreshing a url manually or automatically just to look "fresh" is a kind of trick and Google hates tricks.

Print out the quote below, tape it to your monitor ~ it sums up in a nutshell everything about SEO that you'll ever need to know:

You're much better off to spend energy building content that is valuable to your visitors, making sure your site doesn't generate duplicate URLs and has a link structure that serves people well.