Dillo is a web browser written in C, designed to be small, fast and standards compliant. It uses GTK+ and is extended with its own widgets. Currently a port to GTK2 is being considered, but it isn't likely to become reality, as it would use too much CPU/memory to run. It runs on nearly all unix systems and some handhelds. There is no MS Windows port at the moment.
Dillo can be downloaded at http://www.dillo.org
Stable version is 0.7.3
CVS version is 0.8-pre
Patches are available for tabs / keyboard navigation and HTTPS support. More information on the mailing list.