crossover recs
Unexplained, by ALEO. Gen, Don Eppes. (ca. 4,260 words)
Numb3rs/Supernatural
During a serial killer investigation Don runs into the Winchesters. I enjoyed Don's outside POV of Sam and Dean here.

Temporary Alliances, by Cofax. Gen. (ca. 1,930 words)
Stargate: SG-1/Terminator: The Sarah Connor Chronicles
This is short, but has a great Jack POV, as SG-1 runs into a Terminator and Sarah Connor & co.

Connecting Dots & Straight Lines, by This Fish Flies. Slash, John Sheppard/Rodney McKay. (series, ca. 2,500 words so far)
Numb3rs/Stargate: Atlantis
This is mostly fluff with the premise that Sheppard is somehow related to the Eppes, but fun to read.