- The Doppelganger Pre-Airing Discussion and Speculation Thread (Spoilers)
- 'Doppelganger' (404) General Discussion
- FAN REVIEWS: 'Doppelganger'
- Who will die next? Spoilers for Doppelganger onward
- What's with the rampant loss of characters? ~spoilers up to Doppelganger~
- Office Door
- The Doppelganger Pictures Thread (Spoilers)
- Costume Change ( Spoilers for Doppelganger)
- "The Fight Against the Wraith..." How many times has Teyla said that?
- The window.
- MacKay's Dream
- Carter's Still Infallible
- Was Lorne really affected by the entity ?
- Possible weapon? ( Doppelganger Spoilers)
- Night terrors or Nightmares?
- Reference to Hitchhiker's Guide
- The Clown
- Carters reference to O'neill
- Critical Myth Review: Stargate: Atlantis 4.4: "Doppelganger"
- Reference to Sunday
- What if McKay hadn't interfered?
- Sam has a horse's butt?
- Sky One edits big chunk of Keller's dream
- Heightmeyers Dream - Could it really do that?
- Dooplegangers Really Short