JavaScript libraries
jQuery The Write Less Do More JavaScript Library

Documentation
Measure monetize advertise and improve your apps with Yahoo tools Join the 200 000 developers using Yahoo tools to build their app businesses

Advertising
Latest news coverage email free stock quotes live scores and video are just the beginning Discover more every day at Yahoo

Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security