Now sending e-mail is more and more popular in the world.The reason is that e-mail is more convenient than traditional letters.It is faster and cheaper.Sending an e-mail is very easy,you don't have to buy stamps and envelopes,just use the Internet.However,in my opinion,traditional letters are also necessay.If you write to your parents,friend,they must want to see your handwriting.In all,writing letters and sending e-mails each has his strong points.It is up to you to choose someone you like.