On my site I have both validating rss and atom feeds.
What I would like to do is to somehow associate the latitude and longitude to each item or entry, while still keeping my code valid.
Personally I don't know how people would use these coordinates. Are there programs or sites out there that would benefit from this, and if so, is there a format I should use, or a directory I should register my feeds with?
I just wanted to provide it to allowing people to use it if they could make some good use of it, but in reality, am I just wasting time?
I haven't played with it, but there are certainly a number of sites out there talking about geocoding feeds. Some of the simplest implementations just have you add the latitude and longitude coordinates directly in each item and then systems that support it can parse this data out.