Physical or Virtual Documentation

Both of the documentations have their own advantages and dis-advantages. However, I prefer Virtual documentations over Physical. Why? Virtual documentations are can be found very easily. For example, I can sit at my home on my computer and type in the subject or topic I am working. BOOM! I'll have all the information right in front of me in seconds. Moreover, it is updated regularly, where as Physical Documentations are not updated as frequently. Of course there is some disadvantage, today, anybody can go on internet and post whatever they want. there are always chances that the information that I'm receiving is not 100% accurate or not accurate at all. Therefore, I would have to make sure that the information that I'm using is true. On the other hand, Physical Documentations- books, encyclopedias, etc- are always accurate.