A compression library with source code released under the GNU General Public License. Its purported advantage over zlib (see elsewhere on this page) is that it is fast and has a small memory footprint. An even smaller memory footprint version, called miniLZO is also available, allowing you to include compression in your applications at the cost of a very small increase in executable size (about 6kb on an i386, according to the website).
Lzo Compression
