In my free time I am working on a social networking site for RC pilots. I have information pages for various RC airfields and I was looking for a good way to display a listing of the fields. Putting markers on an embedded google map is a great way to display this type of data to users. The method I have seen recommended for this is to make separate list and map views. I don't really think that is a great user experience though.
To be able to easily parse out the data I wanted to display on the map I ended up making my own microformat. I put a class of field on the div that contained each field I was showing on the page. In that div I put the content that I wanted to display in the information popup for each marker. Then in that div I put two spans that contained the latitude and longitude and gave them each a class. The results ended up looking like this:
Go to www.checkthesock.com/fields to see the end result.