The reason why I love emails over social networking such as Facebook, Twitter or even MSN is that there is no face to face communication. When using MSN, sometimes I get people whom I don't really feel like taking to, making an internet call to me or spamming me with messages. I get so annoyed whenever I'm multitasking on the computer and in the background, their chat box keeps appearing and the MSN soundbite keeps on beeping away.
It is not really their fault for the innumerable annoyance over MSN. It is just that with MSN, we learn how to type in short forms, or have a tendency to type one word and hit enter cause its free! Whereas over SMSes where we are charged per sms, we tend to squeeze in as much info on one SMS to save money. Therefore, over MSN, one sentence would go like 'Hi' followed by "How are you" then, "Haven't seen you for awhile". As such, I have steered clear from MSN, disabling my auto-sign in whenever I log unto my computer.
As for social networking. There are just so many unspoken rules to follow. For instance, one is not allowed to not "un-accept" a friend request from perhaps your boss or colleagues. Even though we have been advised many times that it is best to keep your private life away from your work life. Many a times, when I have chosen to ignore a friend request on Facebook, I will receive hate mails, questioning me on why I have declined their friend request. It often leaves me puzzled because I believe that it is MY Facebook & I have the prerogative to accept or deny whoever I deem fit.
& even in situations whereby I accept a friend (I would rather not) out of courtesy & to avoid hate mails, I would have go to the trouble of categorizing them under certain privacy lists in order to select what I allow them to view on my Facebook and what I disallow them from viewing on my Facebook. What a hassle!
Therefore, email is still the best option, there is not rush to reply a person because there is no certainty if you have seen the email.