As soon as I emailed Ozh about a plugin that automatically sends your new posts to del.icio.us, than I find someone has just released one.
Microformats are sets of XHTML standards to present various bits of metadata on websites. They’re usually used for presenting trivial sets of metadata (hence the ‘micro’ monicker). Some sets of standards that have been categorised as microformats include the XFN (XHTML Friends Network) and the rel=tag attribute for links.