Hi Yohei,

Can you please let me know if my little forum can host multiple sites (=multiple forums) out of one single installation?

Yes, it works with more than one installation. You have to specify some kind of unique prefixes for cookie-handling etc. but it will works.

If yes, does it require several MySQL databases, or just one single database?

No, you can define a unique table prefix per installation.

/Micha