Org from crawling/storing their pages and few taiwan email list reputable sites engage in this. Thus, it's a potential spam signal to search engines. SEO Theory has a good writeup on when and why there may be legitimate reasons to do this, but webmasters seeking to avoid scrutiny may want to take heed. _ Web Page Load Time can Positively Influence Rankings Maile Ohye actually mentioned this at SMX East in New York, but Matt Cutts repeated it again today.
In a nutshell - while slow page load times won't negatively impact your rankings, fast load times may have a positive effect. This comes on a day when the Google Chrome blog introduced their new SPDY research project. I'm particularly happy about this news, because it's also true that load times have a positive second-order effect on SEO. Pingomatic recently published some excellent research on load times from Akamai noting the expectations of users for faster web browsing have doubled in the past 2 years.