Today, the first thoughts that comes to my mind aren't what my work could do with this information, but more about sustainability, accuracy, and power.
A bunch of huge companies are going to hoover up all the data you've compiled, and use it in such a way that most people using it will never see your Web site.
So won't be prompted to contribute back wiki-style, won't get all the benefit of your quality control, won't see your donation appeals, won't know you exist, won't see the other things that you would like to see, won't give you analytics on your impact, won't fund you with ad impressions, etc.
Which might all be OK for your use case, but over time it could break most of the current useful percentage of the Web.