html_to_book
A collection of tools to convert web-based data into text-oriented software formats (aka e-book readers).
Code (python) here is mostly borrowed from various (mentinoned here) projects and assembled/tweaked for comfortable usage from command line.
Note that it's still mostly ad-hoc implementation for my purposes, but since I use it on a daily basis with all kinds of web pages, it should be stable and usable enough.
txt
Gotta add this one.
fb2
URL -> fb2 conversion is based heavily on web2fb2 project codebase and it's yah2fb html->fb2 conversion engine.
Main pro of fb2 is it's support for embedded images, which look quite nice even on simpliest eink-based monochrome reader devices.