Usefulness: Is the information useful or enjoyable to read? Did it make you think, or laugh, or click? Are there handy links to other places?

• 有用性:所提供的信息是不是有用或是有趣的,它让你思考或是大笑或是点击了它的链接了吗?有没有方便的链接可去相关的地方?