本次抽奖，一共有314个有效的entries，微博/微信基本各占一半。我们的抽奖过程如下：
1.分别记录微信/微博的有效转发记录，微信以邮箱为ID，微博以个人weibo地址为ID。
2.合并微博/微信的名单，通过excel进行打乱(使用=rand()对每一个ID生成一个0~1之间的数，并进行sort)。
3.打乱以后的行号作为每个ID的抽奖编号。
4.使用random.org产生1-314的随机数。
5.找到产生的随机数对应的ID作为中奖人。
RANDOM.ORG offers true random numbers to anyone on the Internet. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. People use RANDOM.ORG for holding drawings, lotteries and sweepstakes, to drive online games, for scientific applications and for art and music. The service has existed since 1998 and was built by Dr Mads Haahr of the School of Computer Science and Statistics atTrinity College, Dublin in Ireland. Today, RANDOM.ORG is operated by Randomness and Integrity Services Ltd.
下面录制了一个约1分钟的视频作为我们抽奖的过程展示。
http://v.qq.com/page/q/h/r/q01842m1jhr.html
中奖人是微信平台的ID为“然”的朋友，邮箱是H*****n@g*u.edu
请于48小时内通过微信后台以及邮箱和我们取得联系领奖！
邮箱 [email protected], 微信：北美牧羊场
