What Do I Do Once Heartbleed is Fixed?
Until site hosts update their OpenSSL version, there isn't much you can do other than don't log in. Once OpenSSL has been upgraded to version 1.0.1g, it's time to change your passwords.
Just to be clear: You're going to have to change a lot of passwords. Apache and Nginx make up more than half of the Web servers, which means most of your site logins you could be compromised. Even if they aren't, you need to assume they are because there really isn't a way to tell which sites have been hacked.