ItSucks is a Web spider with the ability to
download (and resume) files. It is also highly
customizable with regular expressions and download
templates. All backend functionality is also available
in a separate library.
mycelium is an information retrieval system. It aspires to be an alternative to Nutch / Lucene. It uses MongoDB as a storage engine.
A programmable packet sniffer.
Java-based object oriented querying.