What is rly?

Some articles on rly:

Image Macro - Formats
... One of the more famous image macros is "O RLY?" O RLY is often used on the internet as an abbreviation for the phrase "Oh, really?" Originally started with a snowy owl ...
O RLY?/Archive 3 - History
... The phrase "O RLY?" was used on the Something Awful Forums at least as early as August 2003 ... The original "O RLY?" Snowy Owl image macro is based on a photo taken by nature photographer John White, which he posted to the newsgroup alt.binaries.pictures.animals in 2001 ... by an unidentified person to say "oh really?", and the phrase O RLY? was added in large letters (using a font similar to Kabel) at the bottom of the image ...
O RLY?/Archive 3
... O RLY? is an Internet phenomenon, typically presented as an image macro featuring a Snowy Owl ... The phrase "O RLY?", an abbreviated form of "Oh, really?", is popularly used in Internet forums in a sarcastic manner, often in response to an obvious, predictable, or blatantly false statement ... original to present different views, including images with the phrases "YA RLY" (Yeah, really.) and "NO WAI!!" (No way!) ...