Board Thread:Questions and Answers/@comment-24.137.244.60-20130919025818/@comment-1173941-20130919031544

when people refer to "Progressive Arc", they are referencing the Light Novel. The Navigation Bar makes it rather clear which one is the Manga, too.

As for which ones are online, or on paper, it's because Online translations of the novels are FAN translations, and not official, in any way. Our wiki has a policy against including ambiguous fan-translations, or any information regarding them, for the very fact that they are ONLY "fan" translations.

And yes, you're right to assume that Kirito and Asuna have yet to marry in real life.