Search for e-mail addresses if you know the name of a person, or the name of the organization that provides their net access. Returns the entries from addresses collected from Usenet postings between July 1991 and February 1996. http://usenet-addresses.mit.edu/
Searchable index of Usenet content which may enable you to download items from another server. The focus is on binaries (for example software, music, or video). http://www.newzbin.com
Free service that searches Usenet newsgroups daily for any phrases that you choose, then delivers any new hits to you via e-mail. http://www.netnewstracker.com
Search binary newsgroups based on subject and/or file name. Browse groups. Subscription based (or view nfo files - informational descriptions of the binaries - for free). http://www.ngindex.com/