Every morning at DoSomething.org, our computers greet us with a report containing over 350 million data points tracking our organization’s performance. Our challenge as data scientists is to translate this haystack of information into guidance for staff so they can make smart decisions — whether it’s choosing the right headline for today’s email blast (should we ask our members to “take action now” or “learn more”?) or determining the purpose of our summer volunteer campaign (food donation drive or recycling campaign?).