There are no original series crossover links at this time.

Evolutions-Gleanings of Past and Future by Albert Green Jr. *See Author's Note*
Star Trek-Battlestar Galactica x-over. The Colonial survivors of the great migration as found a haven in the Federation. But now past revelations and unholy imperatives are beginning to germinate into a future that may destroy the entire Alpha quadrant.

Lost and Found 2: Fitting In by T. Gatlin
Deep Space Nine/Aliens/Stargate Crossover - No Summary Available

QGate by Saraloui
GateTrek. Q decides to escape the confines of the continuum in order to save the Q race from impending doom, which has all been started by the pesky humans

Third Side, The by Slef
Sequel to "Moment"... Close encounters of the Q kind? (Star Wars Ep 1)

Lost and Found 2: Fitting In by T. Gatlin
Deep Space Nine/Aliens/Stargate Crossover - No Summary Available

Symbionts and Symbiotes by Danielle Frances Ducrest (Flatlander)
DS9 - Ezri Dax is somehow transported to the SGC. Hammond and SG-1 promise to help her get back to DS0. However, after Dr. Fraiser discovers the Dax symbiont inside Ezri, all hell breaks loose. Memory displacements, dimensional portals, wormholes, snakes, & more snakes all make appearances.

Destiny's Child by Andrew James Williams
A Federation starship has an encounter with a spatial anomaly and is flung into the Stargate universe. Trouble insues.

Happenstance by Layton Colt
On an away mission --gone wrong as usual-- Torres is kidnapped and taken through a 'strange ring.' Janeway and Paris follow through to attempt a rescue.

Newfound Hope by cheeky_chaos
A broken SG-1 goes through the gate and finds some new friends...and hope. WARNING: major character death. Author's Note: "It does get happy, I promise!"

Seven Chevrons of Nine? by Bree
After an exploratory mission gone wrong, SG-1 meets the crew of Voyager; Seven of Nine becomes a host to an old friend of the team.

Voyager/Stargate by Code
No summary available

There and Back Again by Mara Greengrass
The Enterprise crew must help SG-1 find a way home. - Second Link, Third Link