A body tasked with policing the Internet laid down a two-month deadline for Iran's government to regularise the use of Instagram or access to the site would be blocked.
Twitter saw its shares hammered after reporting quarterly results that largely met expectations but failed to allay concerns about growth of the messaging platform.
Estonian Finance Minister Juergen Ligi announced his resignation after he caused a furore with Facebook comments seen as insulting to the education minister.
Microsof reported quarterly profits ahead of most expectations, as revenues got a boost from its Xbox consoles and Internet "cloud" services for enterprises.
WikiLeaks founder Julian Assange said he was "confident" his asylum status will be resolved, as he awaits an imminent ruling on his case by a Swedish court.
Facebook sued lawyers who represented a man claiming he was entitled to a stake in the huge social network, saying they should have known he was a scam artist.