Image by zerok via Flickr Yahoo recently updated one of their tools for grading and optimizing websites. It's called YSlow, and it checks your site for several different decisions and tools which you (or your web designer) may have implemented. YSlow is an add on to the Firebug tool which is a Firefox extension - so at this point, you can't run it in any other browser, however both Firefox and Firebug are free tools so there is no cost to you other than time. YSlow is nice because it … [Read more...]