The Sixth Discipline is still free on Kindle!

I don't now how long it will last, but The Sixth Discipline is still free in the Kindle store as of now. It's actually doing pretty well, and in the two days it has been free, Amazon has given away over 500 copies. That's only in the US Kindle store, of course, as Amazon doesn't seem to be price-matching internationally. TSD made it into the top 20 free science fiction books, which is really nice! The rankings change every hour or so, so it's hard to know for sure, but I think the best it did was this afternoon when it hit 14th in the science fiction list, but I only got a snap of it as 15th on the list,