XING is Europe's leading Business Network with more than 2 million members. It offers a very easy to use sharing API.

Thanks,
Peter

For details see http://blog.xing.com/2010/12/the-xing-share-button-share-it-with-yo...

Example:

https://www.xing.com/app/user?op=share&url=testlink.de;title=Test;provider=testprovider

Our sharing API supports the following parameters (html-escaped values – white spaces, special characters):

• url – The link’s URL (mandatory)
• title – The article’s title, max. 60 characters (optional)
• provider – The source, max. 20 characters (optional)

By the way, our sharing API also supports the OExchange standard. For more information, please click on the following link: http://www.oexchange.org/spec/#offer-endpoint