中文摘要：

文章选取知乎、豆瓣、果壳国内三个典型的社会化信息搜寻网站,从用户界面、互动方式、开放程度3个方面比较它们在基本功能方面的异同,从内容来源、资源标注、需求表达、结果排序4个方面比较它们在社会化方式方面的异同,发现它们各有特色、各有侧重,但是与社会化信息搜寻系统的理想目标存在较大差距。根据比较分析的结果,文章提出改进社会化信息搜寻系统的建议。

英文摘要：

Three typical Chinese social search websites Zhihu, Douban, and Guoke are chosen in our research. The article shows their similarities and differences based on the comparison of basic functions such as user interface, interactive modes, degree of openness, and socialized functions such as source of content, tagging, demand expression and result sorting. According to canonical social model, we point out the gap between existing social information search websites and ideal goal. Some suggestions based on our analytical result are made to improve the social information search system.