I know I mention Diane Duane’s e-book store sales a lot, but I figure that she’s one of very few excellent examples I know of authors who run their own DRM-free multi-format e-book stores and offer frequent discounts to boot. She’s a shining example of how to do things right, and I think that kind of example needs all the exposure it can get.
And speaking of frequent discounts, Duane is currently offering a 60% discount on everything in her e-book store through 23:59 Hawaiian time, Tuesday March 27th. Use the coupon code FLASHSALE during the checkout process. Among other things, that means the (typo-fixed) 9-book Young Wizards International Edition series collection comes down from $40 to $16.
Awesome deal, and also awesome content provided completely free of DRM. I highly recommend it.