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YDN: Everything for Developers
The Yahoo! Developer Network (YDN) is Yahoo!'s central resource for developers and partners. YDN offers developer tools, APIs, web services, and resources that help developers build rich web experiences, integrate key data sources, and drive traffic.
Developer Tools & Utilities
Blueprint
A standards-based language, easy-to-use toolkit, and a seamless path to thousands of mobile devices.
BrowserPlus™
Create rich web apps with desktop capabilities. Extend the browser with open source JavaScript APIs and secure desktop access.
Desktop Widgets
Tools to help build self-contained desktop widgets with the Konfabulator SDK.
Hadoop
Information about the Apache Hadoop project and the Yahoo! Distribution of Hadoop.
Network Time
Little helpers for applications that consume web services.
Pipes
A powerful composition tool to aggregate, manipulate, and mashup content from around the web.
TV Widgets
Tools for building widgets that run on consumer electronics devices. Find out how you can participate.
YQL
Query, filter, and combine data across Yahoo! and beyond.
YSlow
A Firefox add-on integrated with the Firebug web development tool. YSlow grades web page performance based on best practices.
Yahoo! User Interface Library (YUI)
A set of utilities and controls, written in JavaScript, for building richly interactive web applications.
APIs and Web Services
Advertising & Business Services
APT from Yahoo!
Interact with our advertising platform and ad exchange-based technology.
Y! Search Marketing
Create and manage campaigns, pull reports, set bids and more. All exposed via SOAP-based Web Services.
Communication
Address Book
Access and update contacts in the Yahoo! Address Book.
Mail
Build applications to list messages, display folders, compose and send messages.
Content
Finance
Timely data on finance topics including top stories, most viewed, and company ticker symbol delivered via RSS.
HotJobs
Post, edit, refresh and delete public and private job ads. Use the API to manage your job ads in real-time.
MyBlogLog
Query the MyBlogLog social network for metadata associated with user and site profiles.
Maps & Location Based Services
Fire Eagle
Create location-aware applications and services.
GeoPlanet™
A resource for managing all geo-permanent named places on Earth.
Local
Bring location-based information and user-created content to your website.
Maps
Map APIs allow embedding of rich, interactive maps.
Traffic
Access real-time traffic alert information for a given location.
Placemaker™
Identify, disambiguate, and extract places from unstructured textual content.
Weather
Get up-to-date weather information for your location.
Photos, Audio & Video
Flickr
Tap into this highly interactive photo-sharing community that uploads and shares photos and tags.
Media Player
Create an embedded player for each audio link on your site, or, with one click, turn any page into a playlist.
Music API
Access the Yahoo! Music catalog of artists, albums, tracks, videos, ratings and more.
Search
Answers
Provide user-generated advice on any topic, from within your own site.
BOSS
BOSS (Build your Own Search Service) is Yahoo!'s open search web services platform for the next generation of search innovation, serving hundreds of millions of users across the Web.
delicious
Search delicious bookmarks and tags or see when a specific user last posted.
SearchMonkey
Use structured data to enhance your Yahoo! Search results and make them more useful, relevant, and visually appealing.
Y! Search Web Services
Access data from Yahoo!'s web and vertical search content including news, site, image, and local search content.
Social Applications & Services
Contacts
Read a user's Contacts data (with OAuth permissions).
Social Directory
Access shared and public profile data for users and their connections.
Status
Read and write user's status data.
Libraries & Best Practices
ASTRA
The ActionScript Toolkit for Rich Applications (ASTRA) is a collection of Flash and Flex components, code libraries, toolkits, and utilities developed by Yahoo! for ActionScript developers.
Design Pattern Library
Interaction patterns that describe and solve commonly occuring problems within a specific context, addressing a specific online user need or behavior.
Exceptional Performance
Best practices for improving web performance, including information and tools such as YSlow that focus on the rules for high performance web sites.
Language Centers
Recent Blog Articles
June 30, 2009
Hacking Up North : Winners of the Sunderland Hack Challenge
June 26, 2009
ConvergeSC web event comes to South Carolina
June 24, 2009
Research in the sun - developer evening in Barcelona
June 23, 2009
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