While continuing my (almost) futile attempt to understand the world of microformats, I ran across this nice little application that really drives home the power of this technology for me. If you've ever sent your Microsoft Outlook vCard to a non-Outlook user (or vice versa), you've probably experienced the pain of incompatible data formats. Other applications don't play nicely with teh vCard format. Well, now there's an hCard format. Learn more and create your own (just added it to my email signature!) at http://microformats.org/wiki/hcard.