Quora, a social Q&A site that is a whole lot of fun to use and a great place to learn things trivial or useful.

一个有着许多乐趣去使用，提供场所学习那些琐碎但却有用事物的社交型问题&答案网站。

youdao

In-Q-Tel has some fun investments, like Destineer Studios, an outfit that develops military-themed videogames as well as training simulations for active-duty soldiers.

FORBES: Business In The Beltway