Logos: Windows BMP files, zipped.
Logos: Universal High-Quality .jpg
Logo: Full size .tif
All of the above "Earth" Logos Designed by Jon Busby.
Distributed.net uses a number of cartoon cow bitmap images that were obtained from the public-domain. Jeff Lawson (firstname.lastname@example.org) has manually traced over a few of those low-resolution bitmap images and produced Encapsulated PostScript (EPS) vector images using Adobe Illustrator. These EPS files can be easily scaled to arbitrary resolutions without significant pixelation. Included below are the EPS versions as well as PNG preview images of typical output.