Types of journalism can be categorized based on medium, field, reach, and influence. Journalism is practiced through print, broadcast, and web mediums. It covers diverse fields like politics, crime, entertainment, business, sports, technology, defense, and environment. Based on reach, journalism can be most influential through print and web, second popular moving online, and least popular areas not attracting much attention yet. Journalism informs the public in an unbiased manner through diverse types and specializations.