If you publish your business address(es) on your website it makes sense to use a standard.
- It’s one less design decision for you.
- Visitors can work more easily with your contact information.
- You will be found more easily by some search engines.
To implement hCard you simply add some a few extra classes to your standard html markup to indicate which parts of your page contain address and contact information. This markup helps browser plugins and search engines understand your page.
Alternatively you can use the hCard Creator to do the work for you.
The Operator plugin for Firefox automatically identifies the hCard information in any web page you visit and tucks it away in a toolbar menu ready for you to use to add a contact to your address book, or look up the address on your favorite mapping service..
Technorati have a built a microformat search engine that scours registered web sites for contacts (hCard), event (hCalendar) and reviews (hReview).
hCard, and the other microformats, have been quietly establishing themselves over the past few years, and increasingly are being built into tools, services and applications. The potential benefits of adding a small amount of markup to give meaningful structure to contact information on a web page is well worth the effort.