Common network dump analyzer tool to extract application data and pretty show.
It reassembles and shows HTTP/SMTP/POP3/IMAP etc files.
Please donate if you want this to be a candy.
Java program to extract postings and comments from http://www.livejournal.com (blog) into DB and view/classify/process it. LJ loader. Components to reuse: perl-like, but efficient Web pages scraper, trees analyzer, concurrent scheduler.