Mapa:
http://code.google.com/p/wordpress-geo-mashup/wiki/TagReference

Listado de Tags:

[mctagmap  columns=”3″ hide=”yes” num_show=”3″ more=”more »” toggle=”« less” show_empty=”yes” name_divider=”|” tag_count=”yes”  descriptions=”yes” width=”170″ equal=”yes” manual=”” basic =”no” basic_heading=”no”]

http://wpengineer.com/2162/fix-empty-searches/