Blogs. EdTechRoundUp. Sjoerd Visscher's weblog - w3future.com. I had accesskeys for the tabs at the top of this site, but Mark Wubben reminded me that this was very annoying, mainly because alt-d was one of them (the shortcut to focus the address bar). This makes me think that using accesskeys in webpages is not a very good idea, because you never know what the favorite shortcut keys of your visitor are. If you're wondering what a base URI is for, you'll always end up being directed to RFC 3986 , but you won't find much. Section 5.1 just says: “The term "relative" implies that a "base URI" exists against which the relative reference is applied.”.