EndNote Online is a web-based, version of EndNote. Entries created in EndNote Desktop can be easily moved to EndNote Online and vice versa. See EndNote Online Quick Guide
To start with you need to register with EndNote Online. Once registered, you will have a login that can be used worldwide.
Registration through Web of Science
Connect to Web of Science.
On the bottom right hand side of the screen you will see a heading ‘Customize Your Experience’. Click the Register prompt.
The login you set up will work for both EndNote Online and the Web of Science (they are provided by the same organisation). If you have an existing Web of Knowledge login, it should also work for EndNote Online.
Once you have a login, you can use the Sign In link to connect or connect directly to EndNote online at http://www.endnote.com
Synchronize EndNote Desktop and Online Libraries