Awesome service. I'll definitely be using it. A question about your plans: you describe annotating as 'contributing to the community' but your terms of service

Awesome service. I'll definitely be using it. A question about your plans: you describe annotating as 'contributing to the community' but your terms of service say that only you, not the community, have a license to my copyright on the annotations. You also say that you may one day charge fees. There have been cases (notably http://en.wikipedia.org/wiki/Gracenote_licensing_controversy http://en.wikipedia.org/wiki/Gracenote_licensing_controversy) where users have built a database that a company has then claimed as its own and profited from, to the exclusion of the users. So, the question: are the user-contributed annotations open source and licensed as such? And, if not, why would I contribute annotations to a wiki that I may later no longer be allowed to access?