My Colleague from Gemini Yigal made me discover a very very vertical search engine that is basically a version of Google whose results have been filtered and "pre-approved" as Kosher: 4Torah
Search Torah topics from respected, pre-approved Torah sites. 4Torah.com was created to specifically exclude irrelevant results one could find using a standard Google search. We have customized Google's vast index to contain over 1.4 million Torah-related text pages in English, Hebrew, French, Spanish and other languages as well as audio and video formats. All are hand-picked and deemed trustworthy by our team of frum editors.
I tried a hard request: "CheeseBurger". Results are indeed very interesting
I wonder if this could be replicated for other types of practices and religions (special diets, ...)