The document discusses the advantages and disadvantages of emails and blogs. Some key advantages are that emails allow for easy communication and sharing of various files like pictures and videos. Blogs allow for faster dissemination of information to many people and the ability to get answers to questions from others. However, both emails and blogs carry the risk of viruses from unknown files or deception about the identity of the sender. Proper precautions need to be taken to avoid potential disadvantages when using these tools.