Actually, just reading through the list, I was a little disappointed. Yes, there are some great classics, but Timeline" by Michael Crichton as the "time travel" sci-fi novel of reference. No, just no.
For time travel based sci-fi, Timescape by Gregory Benford is my pick of the lot. Bedford is actually an astrophysicist, so his version of time travel actually make sense. Plus, the characters in the books are scientists. It's a very thought provoking book. He has a second book along those lines, Cosm, which I loved as well, for it's portrayal of the lives of scientists.