Licensing
All data in this corpus is available under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported license. You must attribute this data set to the Leiden Weibo Corpus by crediting the Leiden Weibo Corpus (if possible with a link to this web site) whenever you use or re-distribute it in any form, and you may not re-distribute this data set (or any derived works) under any other terms. For more details, see the license terms and conditions.

Privacy
For administrative purposes, we may store and analyse the web server logs. Similarly, we also keep track of all queries users submit so we can understand what people are looking for, whether their queries are processed in a timely manner, and so on. We will never share this information with third parties, except as required by law.

The data that is shown on the pages with message details is available freely online at http://www.weibo.com/ and through the Sina Weibo API, so we do not believe republishing this information is a privacy problem. We do not allow search engines to store this data.

Questions
If you have any questions about this, please get in touch.