百度百科是一部内容开放、自由的网络百科全书，旨在创造一个涵盖所有领域知识、服务所有互联网用户的中文知识性百科全书。 在这里你可以参与词条编辑，分享贡献你的知识。

Good old Wikipedia, great new look

For iPhone developers who love their apps, App Annie keeps tabs on your apps, making it easy to track sales, rankings, and reviews from around the wor...

Search, find and browse iOS and Android apps with the fast, fun app search knicket. Use features like sliders and the app mesh to refine the results.

YouTube is a place to discover, watch, upload and share videos.

Dictionaries and translators on dictionary.sensagent.com

Twitter is without a doubt the best way to share and discover what is happening right now.

United States top charts. Watch and download top videos from United States

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...

铨网 提供当代中国知名人物或不知名人物的身世、经历、传记、人物语录、人物分析、百态人生、人物名单等内容。

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...

Find what you want in a library near you with WorldCat, a global catalog of library collections.