To keep things as broad as possible, we left out apps that are based solely on religion (sup, JSwipe) or on sexual orientation (oh hey there, Grindr).
We also excluded companies like and e Harmony, because you're probably already familiar with them thanks to the gazillion commercials they have.
It's also much harder to use these sites without paying for their subscription service.
"We've made some registration changes to assist in matching and have added some great features with more to come." While registration is free, only paid members can search for their matches.
I can't give you an answer for all meetup groups but the few groups I've hosted events for I found that most social groups are dominated by singles who are coming out to socialize and potentially find someone compatible.
While the majority of them are not 'actively seeking' we know their true intention by their drop of attendance after they've found someone. The founder of one of Vancouver's largest meetup group estimates that 90% are attending for dating reasons.
Professional groups on the other hand is a lot lower, sadly I do not have the stats for that.
Thanks to apps like Tinder, online dating has basically morphed into mobile dating nowadays.