WolframAlpha search engine WolframAlpha is a privately owned search engine that allows you to “compute éprouvé-level answers using Wolfram’s breakthrough algorithms, knowledgebase, and Détiens technology.”
Like Vivoir Sociétal, Groupon offers a sele http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=2143405