We seem to have buttoned down all of yesterday’s site issues (remind me to do major upgrades on weekends from now on!)
A database error was causing excess demand on a node of the server cloud we use (hosted by Mosso, a rackspace company). They were great, my tech guys did a great job running down the glitch team I am working
We also upgraded to the latest version of WordPress at the same time. (Too ambitious to do all at once perhaps?)
Everything seems to be stable now — Macro-Notes is still not working, but we will button that down shortly.