A network interaction system may comprise a terminal device, an instant messaging server, and a public account server. The terminal device may be configured to receive information from the public account server via the instant messaging server. The instant messaging server may be configured to receive from the terminal device an information operation request associated with information from the public account server. Then the instant messaging server may send a notification associated with the information operation request to the public account server and send a response to the information operation request to the terminal device. The public account server may be configured to receive from the instant messaging server the notification and determine an information transmission strategy for the terminal device in accordance with the information operation request.