A method of sharing information includes: determining, in response to input of a keyword, whether a common interest network corresponding to the keyword exists; generating the common interest network corresponding to the keyword in response to determining that the common interest network corresponding to the keyword does not exist; locating first common content associated with the keyword; and outputting the located first common content to the generated common interest network corresponding to the keyword. The located first common content may be output to the generated common interest network in real time.