I need to connect Feedly and another online RSS/podcast reader, Digg Reader. I want to synchronize them. If I subscribe something in Feedly, I want the subscription to be automatically added in Digg Reader.
I did the same using IFTTT with Diigo and Delicious, but I don't know how to do it with Feedly and Digg Reader, using IFTTT or any other services.
EDIT: how stated below, I can import/export opml files in those online service, but I want to make it automatic.
What you're looking at would be "OPML subscriptions"... but AFAIK, this does not exist in neither Feedly nor Digg.
Now, another "trick" would work and provide the same "result", even though this is not exactly what you're looking for.
If you use a service to "combine" these feeds and generate another feed, you could subscribe to this new feed in both Digg and Feedly. You would then have the exact same content in both reader with a single subscription. To combine these feeds, you could use Superfeedr (as an API) or services like Chimpfeedr.