For the next six days, it is the “Christmas in July” sale at RPGnow / OneBookShelf. A whole pile of cool stuff is for sale during this event, including of course the PDFs of Dyson’s Delves I & II and Magical Theorems & Dark Pacts.
But there’s a LOT more cool stuff you can be scoring discounts on – Tenkar has been collecting a series of posts on what OSR products are being discounted. In addition there is a lot of non-OSR awesomeness available that you should check out.
So yeah, if PDFs are your thing, check out Christmas in July!