It's about as much as a Avatar.
(a.k.a. James Cameron's Avatar, a.k.a. Avatar: An IMAX 3D experience) (production rendering data)
Using a combination of breakthrough techniques that ultimately made it the most expensive movie ever produced, the film Avatar required 1 petabyte (pB) of storage space for its computer rendering. According to some sources, each frame of the 166-minute movie took an average of 47 person-hours to complete.
It's about as much as Facebook's Photo Storage.
It's about one-and-one-fifth times as much as The Google database.
In other words, the amount of The Google database is 0.830 times 1 petabytes.(2006 figures) (web crawler data; compressed)
As of 2006, the Google search engine database contained 0.830 petabytes of compressed data about the web pages it had indexed while crawling the web. Each day, Google processes over one billion search requests.
It's about four-fifths as much as World of Warcraft.
In other words, 1 petabytes is 0.830 times the amount of World of Warcraft, and the amount of World of Warcraft is 1.20 times that amount.(a.k.a. WoW) (2009 figures) (total storage for Blizzard Entertainment)
World of Warcraft, the popular massively multiplayer online role-playing game (MMORPG), uses 1.3 petabytes (pB) of data for its operations. The game's development required about 5 years and included the enhancement of a proprietary 3D graphics engine developed for the prequel of the game.
It's about one-and-nine-tenths times as much as YouTube's video database.
In other words, the amount of YouTube's video database is 0.530 times 1 petabytes.(2008 figures) (video data only)
YouTube's collection of user-generated and commercially-produced videos measures about 0.520 petabytes in total data volume. Every minute, an average of 35 hours of new video content is uploaded to YouTube.
It's about two times as much as The Ancestry.com's Census Records.
In other words, the amount of The Ancestry.com's Census Records is 0.50 times 1 petabytes.(2006 figures) (1790 to 1930 records only)
Updated in 2006 through a one-of-a-kind project, the genealogical research site Ancestry.com added 540 million names from records in the 1790 to 1930 US Census, capturing a total of 0.60 petabytes of data. According to company estimates, the project took 6.6 million hours (750 person-years) to complete.
It's about half as much as an Imgur's Monthly Bandwidth.
In other words, 1 petabytes is 0.4750 times the amount of an Imgur's Monthly Bandwidth, and the amount of an Imgur's Monthly Bandwidth is 2.110 times that amount.(Jan-Feb, 2012 figures)
Imgur, the free online image hosting service, used a total of 2.11 petabytes in bandwidth between January and February, 2012. The site has served up over 15 billion images in that time.