SMS is a good messaging service it is quick and is sent to any mobile phone you want it to be sent to if you have the number and also you can send some messages to land line phones. SMS is good because all you need to send and receive SMS is a mobile phone, there is a big limit on how many words you can use. How ever the problem with SMS is that it can be very expensive to use and can cost a lot if you are not careful on how many texts you are sending. Also anyone who has managed to get your number can text you which can be dangerous if that person is impersonating someone.
IM is a excellent messaging service it is quick and can contact anyone in the world if you have their IM address. Through IM you cannot only send messages but also play games, have a group conversation, send files and use web cams and Mic's etc, Also most IM's don't cost anything. The problem with IM is that you need to have an IM address and you cannot talk to anyone who is offline. Also things like viruses and people like paedophiles can easily impersonate and manipulate anyone who they have the IM address of.
E-MAIL is a good messaging service, you can send almost anything in an email to anyone who has got an email account. Their is not just one website that does emails, so email accounts are very easy to get and create. Sending emails is completely free and very quick and effective way of sending information to other people. Most email accounts will have things like a tool bar on top with font size change and spell check. However when sending an email the person receiving the email can only read it when they are logged onto their email account. Also some emails with big files attached to them can take along time to download and can contain viruses.
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