Welcome from just across the border (and down a bit!) :-)
In addition to the FB group, there appears to be two Yahoo groups based around poly in the nation's capital. Of the two, http://groups.yahoo.com/group/Ottawa-Polyamory/
looks the more active, saying that they have meetings every second Thursday of the month. The other, http://groups.yahoo.com/group/Bi-Polyamory-Ottawa/
is difficult to see how active thy are when it comes to socials (they say the "bi and poly" community - not sure if they mean bisexual or bilingual ;-) )
Having face-to-face socials which aren't "meat-markets" is a really good idea, in my opinion - it allows you to just "be" with people who get it and develop friendships or deeper connections based on true interactions, not some forced expectations that are often there on dating sites.
I wish you luck!