Web data extraction (web data mining, web scraping) tool. It leverages well proved XML and text processing techologies in order to easely extract useful data from arbitrary web pages.
A Java Web crawler: multi-threaded, scalable, with high performance, extensible and polite. It can be used to crawl and index any web or enterprise domain and is configurable through a XML configuration file.
This project will provide a tool for users to get a better understanding of the content and structure of an existing website. It will do this by providing a customised web spider as well as extensions to the GUESS graph visualisation application.
J-Obey is a Java Library/package, which allows people writing their own crawlers to have a stable Robots.txt parser, if you are writing a web crawler of some sort you can use J-Obey to take out the hassle of writing a Robots.txt parser/intrepreter.
studiMaps is a web based application for visualization and analysis of social networks. It consists of two software components: a web-crawler for getting data and the web based application for visualization.