Good move by Salesforce.com in creating a live system status page at status.salesforce.com. It lets you see the current and historical status of their hosted services: up-down status, performance, and transaction volumes. Smart step in response to their recent availability issues. (Although the page could use a bit more explanation/definition of the data). Hopefully we'll see more of these sorts of transparency initiatives by the major web service providers. For more on this see Phil Wainewright's post.