1. A method for extracting content of commodity executable on a server, the server comprising at least one processor and a storage device, and the method comprising: acquiring, at the server, a plurality of web articles from Internet; recognizing, at the server, web articles associated with a commodity from the acquired plurality of web articles, wherein the commodity is one of a product of interest or a place of interest; extracting, at the server, a name for the commodity from the recognized web articles; selecting, at the server, a representative picture for the commodity from all pictures in the recognized web articles, wherein, selecting the representative picture for the commodity from all pictures in the recognized web articles comprises: preprocessing all the pictures in recognized web articles, wherein preprocessing all the pictures in recognized web articles comprises: removing pictures having a face of a user; removing pictures of which pixel value are low; and removing black and white pictures; extracting feature vectors of each picture after preprocessing totality of pictures in the recognized web articles; grading the feature vectors from high to low by an image recognition classifier; and selecting a representative picture for the commodity according to a highest grade; and generating a content summary for the commodity from user reviews in the recognized web articles.