My SO and I met through an online dating site. We would not have met otherwise because we live in different small towns (near the same big town) and don't have any friends in common (that we know of). Yet we hit it off immediately.
At the same time, it took me almost 4 years of dating (off and on) both online and through more traditional methods before he came into my life. So my take on online dating is that, like traditional dating, it is not a magic solution to being alone, it just increases your chances of meeting more people.
My main tips for online dating are to present yourself positively yet honestly, to be very cautious about first meetings and limit any "personal" information until you've had a chance to get to know that the other person is trustworthy, and to be aware that because you are meeting people who have no other link to you, they may feel more free to disappear from your life without warning. That being said, most of the time things will go as well as with any other type of dating.
There is no shame to online dating. In these busy days, how else can you meet people that are not co-workers, neighbors or members of your church? It is certainly better than meeting strangers at a bar. Just remember that e-mail friendships often give a false sense of intimacy/closeness, that not everyone tells the truth on these sites ("on the internet, no one knows you are a dog") and that the purpose of online "dating" is really to introduce you to people. Beyond that, you will have to go through the same old steps of real life dating that any other kind of meeting will achieve.
Best of luck.
