Browser upstart Brave is now letting you contribute Bitcoin to websites in return for ad-blocking.
Beta version 0.11.6 of Brave has activated its Brave Payments, which lets you send micropayments to websites as a reward for not hitting you with ads or trackers.
You turn on Brave Payments from within the open-source browser’s preferences page, then top up a wallet using Coinbase or Bitcoin. BitGo hold the virtual funds.
Donations to websites are anonymous, with your IP address masked.
http://www.theregister.co.uk/2016/09/02/brave_browser_bitcoin_payments_adblocking/