For UK owners of newly purchased Kobos (and possibly pre-existing ones that you've neglected to activate until now), they've a promotion for 1 free ebook of your choice if you activate a new device (can be bought online or in-store) to your UK account between Nov 12th, 2014 and Jan 15th, 2015. This is apparently being done via a 1-use coupon code (which may possibly turn out to be usable on books off their suggested list) which you will receive in your email upon activating the device and must be redeemed by Feb 28th, 2015.
Get the first ebook in a popular series FREE is the basic promo page with the details in the fine print.
Redeem your free ebook now is the page with the listing of the actual titles, which include 6 titles each per category from major publishers (I think they're almost all from the Big 6, though I did spot two Harlequins (now owned by HarperCollins, though)) in non-fiction, crime, general/historical/women's fiction, romance, YA, and sf/fantasy.
There's too much to handily copy-paste from the way it's laid out, but there are books by Bernard Cornwell, Christopher Hitchens, Ben Goldacre, Anne Holt, Garth Nix, Anthony Horowitz, Raymond E. Feist, Lindsay Kelk, Jackie Collins, etc.
You will need to actually be in the UK (or be able to fake it using a sufficiently UK-based IP proxy) in order to even see these pages, and likely take advantage of the deal.
Enjoy! (if applicable)