This freebie from 2013 is no longer available, however Rewards Survey sometimes offers free WSJ subscriptions! I keep a running, updated list of their offers on that link.
It's during prolonged freebie droughts that I rediscover my love for the classic free Wall Street Journal newspaper subscription offer from RewardsGold. Whenever it's noon and I haven't found a single freebie, I like to spread a WSJ on my desk and put on a fake pair of reading glasses. I figure that way, at the very least, my dogs will look at me with respect and think “now there's a guy who knows what he's doing!”
This offer is for a free 26-week subscription. If you currently have a free (or paid) subscription, it's still worth requesting this since it should still add 26 free weeks to your account.
If you're not interested in reading them, these are also great for starting impromptu fires, recycling, and learning you have a mouse problem after discovering a shredded pile in your garage.