I log-in through Google, but want to link that account to my Facebook account. If I log-in through Facebook, it shows that I have no subscriptions since that account is apparently empty. How to I link the two accounts?
You should delete your newly created Facebook linked account, login to previous one, and connect your Facebook using “Find friends” then.
If you go to settings, you should be able to see your email/username and you are able to set a password there as well.
*create a login, not a log.
What about the reverse of this? I had previously logged in only using Facebook, now I want to create a log so that I can use The Old reader with a mobile app that requires the real login, but all my subscriptions are on the Facebook account reader.