I rotate a specially selected series of 18 short stories and nearly as many collections and novels every 90 days. I don't choose to give these away because I feel they're of lesser value, but because I think they are awesome stories through which new readers can get to know me!
In general, I give away a different short story for free every five days.
I've never advertised this much, which, frankly, was stupid of me. So now I've wised up and published the schedule for the freebies and I'll update it fairly regularly.
The link is in this sentence, on the crumpled dollar bill picture, and back in the first sentence of this post - the shortcut is http://smarturl.it/Free99.
I also run $.99 Amazon countdown sales here on my blog and on my twitter feed as they happen.
Should you bookmark both? Yeah, you know you want to!
I might change the rotation slightly or replace a book every now and then, but you're guaranteed at least three months of free and inexpensive reads!