Tech echoing what Val said, Match and its ilk look dodgy to me - lots of action when you're not subscribed and cannot check the messages/likes and then same old, same old after you hand the cash over.
I'm with Tinder on the spark thing - a first date no is a no but maybes are worth another try in my opinion, simply because some men and women can be nervous and I've had meh first meets generate some attraction on the second attempt.
cool As much as you may want to find someone sooner rather than later, there really is no substitute for a bit of experience with OLD... you'll soon get used to trusting your gut and binning off red flag bearers straight away.
As for me, after a week of Miss Keen worrying I wouldn't want to meet if we couldn't dtd, we went out for dinner then back to her place... where multiple mooseburgers were served. Go figure 
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Just to keep things interesting, she left her phone out last night and it was going berserk with matches and replies from POF, Tinder and OKCupid so that gives me something to think about!
As does the fact that Miss Intellectual keeps emailing me (she's blocked everywhere else, but I am going to ignore anyway), an iron from last year I saw three times - Miss Golf - has got back in touch and another, Miss Writer who I haven't met keeps being awesome via text.
It's good to be in demand but also annoyingly confusing at the same time, if you get what I mean.