Quora seems to me like a low quality mechanical turk. It's very cool for the SV elite who like to give out advice to fellow entrepreneurs. That's all, for most else it's neither useful nor interesting.<p>Example: I follow the neuroscience topic. Almost all of the answered questions are google/wikipedia-able. Many of the "best questions/answers" are no better than what any respectable newspaper has already written. The unanswered ones are either:<p>a) Also easily googleable<p>b) Idiotic / funny (How many hobbies does motor cortex allow?)<p>c) Popsci /media trivialities that nobody will ever answer (Can StarCraft II help with working memory in the same way that Dual-N-Back helps with it?)<p>d) Impossible to answer open questions, sometimes even rhetorical.<p>I don't see at this level how it is different from yahoo answers.<p>Answers are not constructed by review; having multiple answers is a mistake. If you're a famous entrepreneur, your answer is "more right" than others. Google is better at this: it provides an objective measure of authority that indirectly relies on the impact of your contribution (the number of links is still a signal). For most subjects, wikipedia has more up-to-date, succinct and accurate information, while quora requires that you search among a sizeable number of answers sometimes.<p>And lastly, how could quora ever solve the spam problem when it becomes big enough? At this point, from my observations, googlebots beat humans.