Pixar's Point Based Color Bleeding Nominated for Sci-Tech Oscar
PopSci
"The Pixar consideration, Point-Based Color Bleeding, drastically increased the speed at which computers can generate realistic light reflection from textured objects in computer animation ." 

Everything You Ever Saw
Computer Graphics World
"An interview with the president of Walt Disney and Pixar Animation Studios, Ed Catmull, as he discusses the evolution of RenderMan and its impact on the CG industry." 

RenderMan@20: Ed Catmull and Dana Batali Reflect On Pixar's Killer App
VFX World
"A major milestone being marked at SIGGRAPH '08 is the 20th anniversary of Pixar's RenderMan software system, which has been used to render the digital graphics in 44 of the last 47 films nominated for an Academy Award for Visual Effects."

20 CGI Classics - From T2 to Batman Begins to WALL-E
Rotten Tomatoes
"RenderMan, a piece of software created by those masters at Pixar, revolutionised computer-generated special effects when it was originally released 20 years ago this year. Designed to take the information in a CG file and 'render' it into an image, the software made the creation of visual effects an art limited only by imagination." 

Impressions of RenderMan For Maya
HighEnd 3D
"The efforts that Pixar had in building an easy application to use shows who they are expecting to be the main users of the product. Using some Global Illuminations features, after a few mouse clicks the artist achieves a good level of lighting in the scene in which he is working."