I've just been having problems with my blog. There were too many connections. After "configuring FastCgi as static server":http://scottstuff.net/blog/articles/2005/07/20/apache-tuning-for-rails-and-fastcgi and reducing MaxClients in apache config, everything seems normal now.

I still need to figure out why UTF-8 is not automatically detected (at least in my Firefox), but that's for later.

update: I've corrected the UTF-8 encoding problem. Apache was sat up with directive AddDefaultCharset on. Disabling it solved the problem. However I still have another one. A get request return two Content-Type headers where it should only send one.