Those who have been to Quora already know how simply awesomeness flows from it. For those who haven’t been on it as yet- you’ll realize it soon. To answer the basic question- What is Quora? I take liberty in getting a cue from an answer well put for one of the questions on Quora itself-  Add 70 IQ points to yahoo answers.
Source- Quora

(Source- Quora)
We all have that little curious child in us- wanting to know more about some specific fields of interest, or explore more subjects unheard of. Quora is the perfect platform for that.