Nikke-
You may already be using this website as a source for Latin events in Toronto but just in case here it is. All events are included Cuban, Colombian, Salvadorian etc. Just scroll down to the link on the left that says Futuros Eventos. As well, if the event is within a week or so it's usually on the front page.
ToRonTo HisPaNo.com
BTW- I remember you asked how the merengue festival was in July in Montreal and I was the one who responded. Have you made it to La Belle Province yet? You would for sure enjoy Montreal nightlife- Le Cactus on Friday night for super old school salsa and Le Punta Cana (Dominican Club) for well mixed merengue and good bachata would round up your weekend! These are just suggestions if you ever make it to Montreal, Canada's party city.
Chao
-LDG.