Just a note: Quora tailors the digests on a per-user basis. I'm not certain what the algorithms involved are, but I'd be willing to bet that they use informatio

Just a note: Quora tailors the digests on a per-user basis. I'm not certain what the algorithms involved are, but I'd be willing to bet that they use information about what you and your friends spend time reading about in constructing it. For example, my most recent weekly digest does not have "What are some things that make you really sad?", but does have "What are your favourite quotes from Harry Potter?" -- it often seems to include Harry Potter. Maybe not a very great question, but it does fit my social network's reading interests pretty snugly.