X-link to the DRM-free megathread for this Tuesday's Wildside Press freebie:
Discover a New Author: Allan Cole & Chris Bunch, containing one short story in their Sten science fiction series, as well as sample chapters from the novels.
Also, if you happen to wish to practice your French-reading skills, publishers Bragelonne and Livre de Poche are holding sales on selected translated titles by Brandon Sanderson and Richard K. Morgan at $4.99 CAD each. Normally the Morgan books go for at least $8.99 CAD regularly, and French publishers rarely hold sales, so these are good prices if you're on the lookout for Francophone sf/fantasy. And Bragelonne's Milady imprint is also DRM-free.
Linkage to the Kobo Canada promotional page, but these are usually also price-matched at Amazon & iTunes CA (for some strange reason, Google Play CA does not carry books from the French publishers) as well:
Incontournables de la science fiction en promo