Living in an era of shared information，
we have witnesses an increasing popularity of online libraries
which bring me much more convenience than ever before.
This essay aims to tell you the advantages of using online libraries.
Firstly,
it saves you a great deal of time and energy searching information via online libraries.
you can get information you need without stepping out of your dorm room.
Secondly,
the abundant digital information might go beyond your imagination compared with
physical libraries.
For example, online libraries make it possible for you to read some rare book，
or some foreign books or papers inaccessible at home.
Finally,
you needn't linger around book shelves or take notes in libraries.
As long as,there is an Internet access,you can decide when and how to read them.
To sum up,we get much easier access to knowledge by using online libraries which
powerful tools for modern people to read,study and research.
Thus,everyone is expected to learn how to use them.