Everything Neil said and a couple more:
Messageboard posts formatting
(Remove quotes “” wherever you find them)
[“quote=PostMonsterGeneral]Quoted material here[/quote”]
[“b]bold[/b”]
[“i]italics[/i”]
[“s]strikethrough[/s”]
[“url=http://paizo.com]Paizo Publishing[/url”]
[“email]customer.service@paizo.com[/email”]
[“list][“*]one[“*]two[/list”]
[“bigger]bigger[/bigger”]
[“smaller]smaller[/smaller”]
[“ooc]out-of-character commentary[/ooc”]
[“spoiler=Movie plot spoiler]This is a spoiler[/spoiler”]
[“dice=Perception]1d20 + 3; 1d6 + 2[/dice”]