In the face of widespread injustices, ordinary people can often feel powerless to effect positive change through their individual actions. That's where community organizing tactics like labor strikes and consumer boycotts can come in. In the latter case, citizen groups apply economic pressure against organizations perpetuating injustices by refusing to buy their products or services. Many such boycotts fizzle out with little effect, while others have achieved results whether by stopping the problematic behavior or simply calling attention to an underlying issue. These are some of the most impactful boycotts throughout history, some long gone and others still ongoing.