Web sites having downtime
Today Twitter experienced several hours of downtime, due to "bugs" in their system. Seems they installed a new version of their software that completely messed up everything, and nobody had access to Twitter, everywhere around the world, for several hours.
The next time Lottery Post is unavailable for a minute or two due to an upgrade, think back to what happened at Twitter today -- with their billion dollar technology budget -- when they did an upgrade.