My collections, novellas, and some of my novels are half off for the month of July at Smashwords as part of their annual July "Summer/Winter" promotion.
Here's where you can find my titles: Robert Collins
If you're not familiar with Smashwords, they offer ebooks in every format for every reader: Kindles, Nooks, iDevices, whatever you have. Every July they have a "Summer/Winter" sale, as it's summer here and winter in the Southern Hemisphere, and summer and winter are good times to buy books.
Oh, and if there isn't anything of mine that interests you, poke around the site anyway. There might be works by other authors that will grab you.