Universal Subtitles is looking for volunteers to help its effort to caption online videos. This crowdsourcing effort is described this way: “We’re looking for volunteers to caption and translate videos on our volunteer team page. We’ve curated some fascinating videos from non-profit and educational partners that deserve a global audience. Even if you don’t speak multiple languages you can still help make the video more accessible by creating captions.” If you can volunteer, you'll find more info
here.