the Internet, by posting a real-time video interview of victims of an earthquake with a chart explaining the different scales of earthquakes, can efficiently inform the public about knowledge of earthquakes. Impact on journalism ideology Rather than simply an emergent communication technology, new media need to be understood with respect to their practical usage. Scholars such as Deuze and Peters offer an insight view of multimedia's relationship to journalism. Journalism practices are described by five key concepts: public service, objectivity, autonomy, immediacy, and ethics. According to Deuze, journalism ideology is enhanced and reshaped by multimedia forces. First of all, the ideology of public service explains the journalists' responsibility of informing the public by serving as watchdogs of the society. Gant claims that "journalists reference the public service they perform while pursuing avenues generally closed to the public". Today's multimedia ecosystem nourishes a diversity of opinions, broadening the range of public discussion. Journalists provide various platforms to increase the opportunity for popular participation, ensuring an extensive public inclusion. In doing so, citizens' voices are heard by journalists, and they can thus seek a satisfying way to serve the needs of individuals. Objectivity, the second concept, is considered as one of the most important value of journalists' professional identity. It requires journalists to be impartial, neutral, and fair. By introducing interactive communication technology, citizens are able to take part in the process of journalistic practices, whether through commenting or producing their own content. They sometimes share events happened around them as traditional journalists, reporting objectively by looking for the truth. However, some scholars argue that such trend threatens the professional value of journalists. It is hard to distinguish the trustworthiness of content in the cyber space as the participatory group is growing exponentially and becoming more diverse. The emergence of multimedia therefore can both enhance and undermine the ideology of objectivity. Thirdly, autonomy refers to the independency of journalists, without interference of external forces such as governmental censorship. Multimedia journalism guarantees such autonomy as it encourages citizen's engagement. Since the Internet has become a forum for free speech, the virtual community created in cyber space is more democratic than the real life society. News content can be distributed autonomously, not having to undergo the checks of a political supervisor and regulation. The fourth concept, immediacy, is another component central to the professional journalism's ideology. It means the ability of delivering news timely