One thing I'll say about interent romance/meetings is that I noticed a tendency to be more open and more intense early on in the relationship. This was true for myself and Nacht and I've seen it happen in many other cases. You tell each other more things early on that you might NOT mention for months in a 'dating in person' relationship.
How many people discuss their entire dating past and the good/bad aspects of most 'ex'es before the third month of dating? Nacht and I had exchanged all that and a whole lot more by the second month of talking with one another and by the third we were sure we needed to meet in person to see if it could work out longer term. Now, I think in some ways that is good, but in others it wasn't. For instance he and I didn't have the whole 'dating' thing, where you gradually get used to each others little habits and ways of doing things.
I don't know that it's for everyone, there were good and bad things about starting a romance online. Right now he and I are trying to work on all the things we missed by not 'dating' in person.
As Hunter pointed out, there are a lot of horror stories too. Nacht actually experienced one long before he and I met, so I can vouch for them exisiting.