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

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...

foursquare

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...

Ngày mai trời lại sáng

Twenty sections of 225 study guides and exercises for learners, middle school through returning adult, in 32 languages.

See what your friends are reading. Keep track of what you

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...