Liquid democracy is system where everyone has the ability to vote themselves, to delegate their vote to someone else, and to remove the delegation of their vote at any time.
Quadratic voting is a system of buying votes, where each additional vote costs twice as much as the one before it. In other words, money buys votes, but with strong diminishing returns.
A Condorcet method (English: /kɒndɔːrˈseɪ/) is an election method that elects the candidate that would win a majority of the vote in all of the head-to-head elections against each of the other candidates, whenever there is such a candidate. A candidate with this property is called the Condorcet winner. Voting methods that always elect the Condorcet winner, when one exists, satisfy the Condorcet criterion.
Majority Judgement: a new theory and method of voting, judging and ranking, majority judgment