This is encouragement to me (and I hope more people) to develop hobbies of data curating. Such information is just plain helpful and fun. I've never done it yet

This is encouragement to me (and I hope more people) to develop hobbies of data curating. Such information is just plain helpful and fun. I've never done it yet, but Wolfram Alpha seems to take volunteers (http://volunteer.wolframalpha.com/ http://volunteer.wolframalpha.com/).