For several days the BrainOnFire.net site was inoperable, due to an error at my hosting company, NetFirms. I have switched to a new host, NearlyFreeSpeech.net, which has more features yet is less expensive. One of the features is the Apache module mod_rewrite, which allows me to have prettier URLs. (Luckily, the old-style URLs still work, so existing links to this site won't break.)
If you sent me email in the past week and didn't receive a reply, I may not have received it, so consider resending it.