目前，越来越多的SNS开始搭建，越来越多的人进入了SNS网络，可以想象下一个营销热点：SNS营销，用通俗点的话，就是“圈子”。

LinkedIn 利用圈子里的问答功能（圈子互助），快速的扩展到相关人脉，达到营销的目的。

今日，从LinkedIn收到一封邮件，详情如下：

Alex,

On July 17, Yao Ming created a profile on LinkedIn and asked users how playing sports has made a difference in their professional life. Through LinkedIn, he also hoped to promote the Yao Ming Foundation, which he established to help rebuild schools for the children devastated in China"s earthquake. So far, he has received over 700 thoughtful answers. You still have a chance to respond, his question will be open until this Thursday, July 24th.

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Has participating in sports made an important difference in your professional life?

Playing basketball has allowed me to realize my dream of playing in the Olympics. It has also given me the ability to establish a foundation that can help people in need. Has participating in sports made an important difference in your professional life? To thank you for sharing your answers with me, five people who answer by midnight Saturday July 19 will be selected to win 20 raffle tickets each from The Yao Ming Foundation. The raffle winner and his/her guest get an all-expenses paid trip to the Beijing Olympics to see Team China play Team U.S.A.. They will also get to see a Houston Rockets game and meet with me afterwards. For more information on my foundation and the raffle go to