The song that plays during the final montage is the version of "Way Down In The Hole" that was used in the opening credits of Season One.
The quote that Walon gives Bubbles to read is aphorism 104 from The Zurau Aphorisms by Franz Kafka. The aphorisms were taken from a diary that Kafka kept while recovering from tuberculosis. They were only collected and published after his death. Kafka was staying at his sister's house when he wrote the aphorisms, reflecting Bubbles' living arrangements in his sister's basement.
The episode's title is a snippet of text reporters use to signal the end of their story, particularly if it was moving over a wire service or being filed remotely.
When he's arguing with Klebanow over whether or not Scott is making up his stories, Gus references Jayson Blair, Stephen Glass and Jack Kelley - three real life journalists who were caught publishing fabricated stories.
This episode earned the second and final of the show's two Emmy Awards nominations, for Best Writing - Drama. The first episode to receive an Emmy nomination was Middle Ground (2004), in the same category. Never an awards favorite, the series also never received a single Golden Globe nomination.