Bitbounce - Charge unsolicited email senders a cryptocurrency fee
BitcoinGet - Earn bitcoin by completing tasks, answering surveys, watching videos, and more.
21 Lists - Send and receive targeted, paid microtasks
Octopus Tasks - Earn by doing micro-tasks for companies and friends.
SerpClix - SerpClix is a click exchange network used to send more real clicks to your Google SERP. You can click to earn money or buy clicks to rank higher on Google.
Current - A facebook messaging app for mac