I have not used an online dating site before, but I did happen to meet a man on a random website, we started chatting, and ended up connecting. Neither of us were 'looking for' someone at the time, but we started e-mailing for about a week and a half, and after that we exchanged phone numbers, and after 3 weeks he came to meet me (somehow we happened to live only a couple hours apart)... and 3 months later I married him!!
You can really meet the love of your life online, and though I never thought I would, I did. My advice would be to simply e-mail for awhile first, and then move onto phone conversation... wait a few weeks before meeting someone. It will make it less awkward and feel less like a 'blind date' that way. You also can get a good feel of if the guy is actually worth meeting. I love that I met my guy the way I did because simply from seeing his emails and phone conversations, I was already able to tell that he was a great communicator, he called and wrote when he said he would, and we had a lot of interests in common.