Adventures in Time listy thing

I'm moderating two panels at Marscon this weekend (see previous post) and have been brainstorming on Twitter/Google+, etc. for time travel stuff. Tomorrow, it will be alternate history.
Here's an informal list of what people have recommended re: time travel or that I thought of my own self:
Kindred by Octavia Butler
Wrinkle in Time by Madelaine L'Engle
Roadmarks by Roger Zelazny
The Anubis Gates by Tim Powers
Terminator and sequels
Somewhere in Time
Connecticut Yankee in King Arthur's Court by Mark Twain
To Say Nothing of the Dog and rest of series by Connie Willis
And Wild for to Hold by Nancy Kress
The Time Machine by H.G. Wells
"The Skull" and "Meddler" by Phillip K. Dick
The Spanish Pearl by Catherine Friend
The Door Into Summer by Robert Heinlein
Vintage Season by C.L. Moore and Henry Kuttner
12 Monkeys
Free Live Free by Gene Wolfe
Time After Time
The Time Traveler's Wife by Audrey Niffenager
"A Sound of Thunder" by Ray Bradbury
Back to the Future
The Freedom Maze by Delia Sherman