I'll start with a few:
Black Friday:
- Astrill VPN, 50% off their yearly subscription: https://www.astrill.com/
- Codeschool https://www.codeschool.com $75 off the 6 month subscription
- http://www.oreilly.com/, 50~60% off ebooks and videosCyber Monday:
- https://www.pluralsight.com/ Not sure what the deal will be