Sadly this will go completely over the heads of some of the posters here, but for the benefit of the others, here is the danger when you give up your possession of the physical hard copy of your reference books and defer to the convenience of online sources:
Britannica and World Book Encyclopedia for its Encarta digital encyclopedia, Microsoft reluctantly used (under license) the text of Funk & Wagnalls encyclopedia for the first editions of its encyclopedia. This licensed text was gradually replaced over the following years with content Microsoft created itself."
I'd have liked to have stuck an "LOL!" after that last sentence, but it's way too serious a matter to joke about. Here's the full context below: