Aracnis is a Java based framework for building distributed web spiders. These spiders can be used to accomplish a variety of tasks, for example, screen-scraping and link integrity checking.
Switchboard is a conceptual-level interface to many web and network related functions (SOAP, REST, XML parsing, screen-scraping, FTP, network sniffing), designed for the Processing environment.
A hypertext-browser written in Java which filters links (emails, docs or pics for e.g.) out of .html-documents and paints them on screen in hierarchical order.
Users get a quick overview of how a website is put together.