Very good point, did think about that, but until now still not very sure about business model. At the beginning, when we build it, we want to have a editor for

Very good point, did think about that, but until now still not very sure about business model. At the beginning, when we build it, we want to have a editor for people to easily type and share their Math (even without knowing LATEX). Will definitely consider/think about Integration, or somethings else ... Thanks.