Site showing blank screen (WordPress) for a few hours

I was faced with a blank screen this morning when trying to respond to a comment someone posted to my site. I did some digging and found this on the WordPress Support pages

It seems my site is consuming a bit too much memory as it has grown over the years, so I expanded my php memory allowances to 16M. This has solved the problem. For the technical persons out there, you just need to up the settings in your php.ini:

# edit your php.ini file, mine is in /etc/php.ini
#
$ vim /etc/php.ini

# change the 'memory_limit' variable to 16M
#
memory_limit=16M

Hope you all did not miss my site too much while it was down! ;-)