Voting
Voting refers to any system of making multiple choice collectively - it is typically used in elections to form a government which must make binding decisions that affect everyone, or elect a board (or sometimes even the management) of an enterprise, or choose various measures that affect company operations. See w:voting systems for some more depth on this.
How edits, votes and bets affect the Consumerium buying signal is up for debate. This is probably the design issue that is hardest to resolve, as different factions typically view these in quite a different manner. It is possible to manage it as a trusted priestly hierarchy as Wikipedia does, but this degrades the dissensus. It is possible to have factions compete in a voting system, but this values poor contributors as much as good ones. It is possible to create a revert currency and do betting in it, or in cash even, but this is just another system suitable for hacking.