Kara brings up an interesting question: "The art of writing letters (and the thoughtfulness that entails) has been lost to this latest generation. Do we fall in love more quickly because we can communicate more quickly?"
I think today's technology enables people to fall in love more quickly, but is it real love or infatuation? The process of writing and mailing letters is, of course, slower and allows for more thoughtfulness between "postings" and it seems to me that this slower process would allow two people to really get to know each other more deeply than today's texting.
Back in my day (the 80s ;) ) while we didn't have instant communication, my fiance and I communicated through letters and phone calls and I think it allowed us to get to know each other better. Because phones had to be plugged in it required staying in place and, I think, made me pay more attention. I spent entire evenings sitting on the basement stairs where there was nothing to look at or get distracted by and so I paid close attention to what was being said. We're still going strong 32 years later.