Around 11PM Iran time, 16 June 2009, a friend of mine sent the following updates:
1.BBC has changed [its] layout to green colour to show their support with demonstrator.
2.Twitter had a scheduled conservation break, but it is postponed to help Iranians [to] communicate.
3.Abdolfatah Soltani from Shirin Ebadi human rights organization was arrested.
See a screenshot of the BBC webpage in green: