More websites including ghs.google.com blocked in Sri Lanka?

Reports online and which I received through email indicate that more sites are being deliberately or inadvertently blocked in Sri Lanka, with most of the disruptions occurring on Sri Lanka Telecom ADSL broadband connections.
Some reports claim that domains hosted on blogger.com are being blocked, and other reports indicate that this is now a matter that is resolved. Other reports confirm that sites resolving to ghs.google.com were blocked and that ISPs have now removed the block. It is not clear why ghs.google.com was blocked.

Several organisations with their emails hosted on Google

Apps reported severe problems with logging into their web mail, though POP / IMAP access worked fine.
Lanka News Web, itself blocked in Sri Lanka, now reports that another news website, Sri Lanka Guardian, is also blocked.

Coming soon after the IGP’s directive to all ISPs to “suspend licenses” of porn websites in Sri Lanka, it is worrying whether these are the first stabs at a more pervasive web filtering system in Sri Lanka.