The good people at DNotesEDU have launched Cryptocurrency Education Week. You can see more information on this thread:
https://bitcointalk.org/index.php?topic=3281937.msg34302377#msg34302377There are a number of contests and giveaways for those who share posts on social media.
The really fun part is that they have hidden some private keys on their website DNotesEDU.com. The first ones to find the private keys, import them to their DNotes wallets and withdraw the funds to their own addresses get to keep the coins! They keep adding private keys, so even though some have been found already, your chances are still pretty good.
Happy private key hunting!