Sites: Comments in Sites now have new features that are similar to the ones available for comments in Google documents, spreadsheets and presentations. Users can now +mention others, get new comment notifications via email and respond to comments via email.

The following features are intended for release to these domains on October 8th:
No new features to announce.

Release track:
Scheduled

Editions included:
Google Apps, Google Apps for Business, Government and Education

For more information:
http://support.google.com/sites/bin/answer.py?hl=en&answer=98225

whatsnew.googleapps.com
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