Do quick, simple tasks that have a huge impact – like improve the quality of Google Translate in your language, or of Google Maps in your country, etc. Each micro-task takes no more than 5-10 seconds, so knock away a few the next time you find yourself with a few moments to kill – be it while waiting in line at the grocery shop or on the train ride home. Every time that you use it, you know that you've made the Internet a better place for your community.