You can place a Picasa album on a map in Joomla. Updates in your album will show (almost) directly in your map.
Use the link behind the show in google earth link when showing the map in picasaweb.google.com.

{mosmap kml='http://picasaweb.google.com /data/feed/base/user /mikesamar/
albumid/5234471187690328129 ?kind=photo&alt=kml&hl=nl'}

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It also works with the GeoXML renderer with sidebar.
There are bugs (twice the photo on map and infowindow doesn't show photo).

{mosmap kml='http://picasaweb.google.com /data/feed/base/user /mikesamar/albumid/ 5234471187690328129?kind=photo&alt=kml&hl=nl'| kmlrenderer='geoxml'| kmlsidebar='left'| kmlsbwidth='200'}

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