Put some important keywords in MediaWiki:Pagetitle, which changes the contents of the <title> tag on every page - e.g. Fire Emblem Wiki could add things like Awakening, Marth, Chrom, Ike, etc. Some people also suggest moving the main page to "<subject> Wiki", regardless of what the wiki is actually named - WiKirby's main page is at "Kirby Wiki", for example.