microformats

Machine tags in Drupal:

Everything of interest in OpenStreetMap is either tagged (e.g., a point of interest or a whole road) or helps build up other structures that are themselves tagged (such as junctions, or vertices, in roads). The tags aren’t simple ‘tags’ as are commonly used in Flickr, del.icio.us, or any other Web-2.0ey site you may be familiar with, but are instead key-value pairs consisting of, for example, key=amenity, value=cinema (often simply written as amenity=cinema for brevity).

These tags are similar in style to some advanced tags that have been used by a growing number of people on Flickr and other sites for a while, notably those such as geo:lat=54.2, geo:lon=-4.4 to denote the location of a photo. Nothing had ever been formalised though, so those tags were listed amongst the other simple tags, looking a little out of place. That is, until recently, with the launch of machine tags on Flickr, announcing that they will be supporting this more advanced usecase even better. You can read more about all this over on Dan Catt’s blog.  Click to read more »