Writing for ages...nothing saved

Rule: When you decide to write a really long piece for your blog, there is a power cut and all is lost
Exception: When you have saved it somewhere else so you can retrieve it (WHEN WILL I EVER LEARN!!!)

Here you were supposed to read a fantastic piece about my mother and parent-teacher gatherings.
By the clues given initially you might be able to figure out why you cannot read it here...