Over this last weekend, the hosting provider for Sixteen Small Stones experienced a major hardware outage. While they were able to get most of the websites they host back up within a couple of hours, one segment of their system remained offline for over 40 hours. Unfortunately my websites are hosted on that segment. If you tried to visit during that time you would have seen a 403 / forbidden error.
In the future, if my blog goes down, you can check my twitter account for updates about what is happening.
While every hosting provider has occasional outages, this is the first time I have been down for such a long time. At least it happened over a weekend when traffic is usually lower anyway. Hopefully things will remain stable now.