The official Nine Inch Nails internet pre-sale begins today over at NIN.com! Read up on the rules for the presale here (you need a free NIN account to participate in the pre-sale) and here's the link to check out onsale times - different cities have different on-sale times for the pre-sale (the presale for the Detroit area October 7th show at the Palace starts today at 12:30 pm ET). Again, please be sure to read all of the information provided at NIN before purchasing tickets.
Info for the Detroit show only:
There will be a Live Nation pre-sale on Thursday, June 13th from 10 am through 5pm. Password: Tension
The general onsale for many of the dates on the tour (including Detroit) is June 14th.