Public libraries should reorganize the online publications and incorporate them into collections via hyperlink, download and printing, so that each library, even each person has tens of thousands, if not millions, electronic resources. The commercial online publications have limited their services by time and places according to contract. However, the online government publications which should be accessible to the public according to the law, the online academic literature which are available to the public based on the academic ethics eventually, and the public domain publications whose copyright had been expired and are free for everyone, will become mainstream online service of public libraries.