As this site is growing larger and larger, the time needed to rebuild the site is increased. Ususally I don't need to rebuild the whole site, but when there is some comment spam, I need to rebuild the whole site which is quite troublesome.
As MT3.0 is not free for all, there is no update for this blog. So I started to look for other PHP+MySQL blogging solution. PHP is much faster. Last night I have tried out WordPress but found out that it cannot provide multiple blog hosting in one single installation. So I'm now studying pLog. It seems that this one is quite complete and has a better organization on the resources. Good. Of course, the Chinese support of pLOG would be the main concern.