That pretty much sums it up. I'm glad you asked, because this has come up on a number of different occasions and I just want to speak my mind on it. I cannot stress this enough. There are some things that the net is good for, such as wasting huge amounts of your time, or finding parts for your busted Amiga. Finding a relationship is NOT one of those things.
People are completely different online than in person.
They don't act the same, talk the same, walk the same, have sex the same, or any other trait you can think of. You build up this mental picture of what the person is like without the advantage of the real world, where you can actually see what the person is like. The way to find women of similar age and interests who live near you is to go out and find women who live near you with similar interests and are about your age. Go for a walk, say hi to the women you meet. Go out with friends.