I thought you guys might be interested in this booklet I made for a presentation I gave recently at Continuum 7 in Melbourne. It's about the science of time travel, how to apply it in fiction, and common mistakes to avoid. I've also added some tables on mundane travel times (for horses, armies etc), useful for fiction writers. People liked the presentation and I thought you guys might find it useful, so here is a link:
Wasn't sure if this was the right section to post this in, so apologies if it's not.
Also, if you have any questions about time travel or anything in the booklet, feel free to ask them here ^_^