Hawkeye/Agent Coulson

So, I'm very curious. It appears that the number 2 slash pairing in Avengers (movie) 'verse is Clint/Coulson. Like, where the fuck did this come from? The less than a minute screen time in Thor where they talked over walkie-talkies? Or is there greater interaction in the comic book that everyone is basing this on (Does Coulson exist in comic 'verse, even? I know Maria Hill does, but I haven't come across Coulson...)?

Don't get me wrong. I've come across Clint/Coulson in any number of Steve/Tony fics and have found Clint to be my favorite. And then started reading Clint/Coulson stories with them as the main characters. Because when written right, Clint is better at snark than Tony. He's like a character made entirely of crack. He's awesome. And somehow, him pestering Coulson cracks me up to no end. So yeah. I kind of ship it. (And Clint/Natasha, but I also kind of ship Tony/Natasha...thank you 616 and Ultimates for giving me awesome pairings. Oh, and also Pepper/Coulson based on the Iron Man movies...) I also love Clint in Avengers: Earth's Mightiest Heroes; again, his snark slays me. And I love Coulson being kickass and annoyed and yet affectionate about all the Avengers even when he wants to taser them (Tony). And seeing him have someone to go home to is nice.

Point being, I'm digging the Clint/Coulson. I just have no idea why everyone else started shipping it. I did through awesomely-written fic. But everyone else??

And in that vein...who knows more good Clint/Coulson authors? Fic recs? :D