Facebook 是一個聯繫朋友、工作伙伴、同學或其它社交圈之間的社交工具。你可以利用 Facebook 與朋友保持密切聯絡，無限量地上傳相片，分享轉貼連結及影片，還可以幫助你增進你對朋友的了解。

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...

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

The world?s largest online music catalogue, powered by your scrobbles. Internet radio, videos, photos, stats, charts, biographies and concerts.

pixiv is an online artist community where everyone can enjoy submitting and browsing artworks.

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

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

How much is your Twitter profile worth?

Google+ aims to make sharing on the web more like sharing in real life. Check out Circles, Messenger and Hangouts, just a few of the things we&#39...

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the worl...