Gzip
patch for gzip that makes it output rsync friendly files
DVD-HQ : Configuring TMPGEnc for high-quality DVD-compliant MPEG-2
Zopfli Optimization: Literally Free Bandwidth
compression - How are zlib, gzip and Zip related? What do they have in common and how are they different? - Stack Overflow
mnot’s blog: Designing Headers for HTTP Compression
Unraveling The JPEG
Amazingly interactive technical article on the JPEG file format
Compression-related projects
Python compression, including DEFLATE
Understanding zlib
How can I decompress a gzip stream with zlib?
Solid answer describing how to use zlib to inflate 3 different types of compressed data: deflate, zlib, gzip
How to DEFLATE with a command line tool to extract a git object?
use the pigz command
zliby | RubyGems.org | your community gem host
a pure ruby zlib library
Dissecting the GZIP format
BaseClass - What is Huffman Coding?
Everything I know about the XZ backdoor