社会书签；国内称作"网址收藏夹"或"网摘"；互联网用户可以利用元数据收藏喜欢的任何页面；并与朋友们一起分享收藏
Example forms of user input include social bookmarking
or direct interaction with the search results such as promoting or
demoting results the user feels are more or less relevant to their
query.
形式有用户输入社会书签、对搜索结果的直接互动，如：提高或降低用户感觉的结果或多或少影响他们的提问。