I figured since I was out searching for them, might as well share the fruits of my labor. ;) So here are links to a bunch of fanfic tags for the Vegas” episode of “Stargate Atlantis.” Now, I know this can’t be all that's out there, and these are all basically 'gen'. If there are others, feel free to post in the comments below (just note if they’re gen or slash). Thanks!
Dead in the Desert
Sympathy for the Devil
a story from the wraith’s point of view
Silencing the Voice (multi-chapter)
An AU of this AU with John/Teyla
Move [Note: this one is being further continued so check it out again]
By glitterdash (gen, or pre-slash, however you see it)
The Genesis of John
This one involves John’s brother
Face to Face
(not a happy ending, just to warn you)
The Way It Should Have Been
ADDITIONS (culled from comments section)
NOTE: Even more links provided in comments below.