Strip Club is an online comic reader. It supports download and local archival of Webcomic images. It supports Linux, Win32 (tested). It should also work under any POSIX system with X11, and possibly OSX, but nothing else has been tested.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.