Three bits of Amazon S3 news:

1. We’re now using S3 as the primary storage for WordPress.com, rather than just for backups. We have some layers in front of it, notably Varnish, so the majority of our serving doesn’t hit S3. Still, our AWS bill went from around $200/mo to $1500/mo, and rising. It has simplified some of our requirements, but doesn’t look like it’ll save any money.
2. Amazon now has a Service Level Agreement (SLA). Big companies like this, but in the real world I’ve found there to be a low correlation with service reliability and the presence of a SLA.
3. In the Amazon newsletter they promoted Content Spooling Network as a good use of their services. Unfortunately, the service appears to be tailored for using Mechanical Turk to “ghostwrite keyword-based articles for SEO,” or more succinctly, “spam.” Get a web-savvy editor for that newsletter, guys!