Google has always been about speed. They think the Internet should be faster, and that this will improve our quality of life. On their own site, they have almost always kept user interfaces to a functional minimum. They design for utility. Their search engine even blatantly ignores some web standards for the sake of code size reduction.
Finally, they have released a list of free tools created by themselves and others that help make the web faster. If you are involved with any aspect of a website this list is worth a look. A slow site has an impact on everyone, even the marketing guys.
This list of tools is part of a larger section of their website all focused on making the web faster. It also contains articles and a community area.