Problem: Google had a nice feature to build google maps from rss geo information with a simple iframe tag, but this service is discontinued.
<iframe width="920" height="450" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/?q=http:%2F%2Ftothepin.blogspot.com%2Ffeeds%2Fposts%2Fdefault&ie=UTF8&t=t&source=embed&output=embed"> </iframe>
You could actually add ?q=rssfeed to the maps.google.com url and it produced a map from all geo data in this rss feed.
Solution: The new api for google maps is different but you can still do the same. Here some sample code:
<script src="//maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script> <script> function initialize() { var myLatlng = new google.maps.LatLng(48.2084900,16.3720800); var mapOptions = {zoom: 4, center: myLatlng } var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions); var georssLayer = new google.maps.KmlLayer({ url: 'http://tothepin.blogspot.com/feeds/posts/default?alt=rss' }); georssLayer.setMap(map); } google.maps.event.addDomListener(window, 'load', initialize); </script> <style> #map-canvas { width:800px; height:500px; } </style> <div id=map-canvas>Map</div>