exp125
SpiderOak are offering unlimited online storage & backup space for US$125 per year.
Unsure if this offer is for a perpetual discount for future renewals, or as a one-year deal.
SpiderOak is a fantastic service particularly for those who are security and privacy concerned. All data is encrypted.
Their usual pricing is capacity-tiered, with the closest priced plan retailing for US$12/mo (US$129/yr) for 1TB.
Protect Your Data in 2016
This year, make a resolution to protect your personal and work files, pictures, and anything else for only $125 a year. Be sure to take advantage of this offer by using the promo code below.
Use Promo Code
exp125Offer expires on January 30, 2016.
An alternative would be Backblaze at $95 for 2 years. I've been a customer for over 5 years and i've got 1.3TB backed up with them. I don't want to discredit the OP, but in the spirit of OZB it's just an alternative. If anyone is interested, the below referral link will give you a month free (I also get a month free, in the name of disclosure).
https://secure.backblaze.com/r/00tjbo