- The Hacker's Choice, http://www.thc.org
- Packet Storm, http://www.packetstormsecurity.org
- Insecure.org, http://www.insecure.org
- Zone-H, http://www.zone-h.org
- Phenoelit, http://www.phenoelit.de
- newroot.de, http://www.newroot.de
- Pulhas, http://p.ulh.as/
- Digital Offense, http://www.digitaloffense.net
- GOBBLES Security, http://www.immunitysec.com/GOBBLES/
- cqure.net, http://www.cqure.net
- TESO, http://www.team-teso.net
- ADM, http://adm.freelsd.net/ADM/
- Netric, http://www.netric.org
- Hack in the box, http://www.hackinthebox.org
- Outsiders, http://www.0x333.org
- cnhonker, http://www.cnhonker.com
- .dtors, http://www.dtors.net
- Soft Project, http://www.s0ftpj.org
- Phrack, http://www.phrack.org
- LSD-PLaNET, http://www.lsd-pl.net
- w00w00, http://www.w00w00.org
- Astalavista, http://astalavista.com
- Black Sun Research Facility, http://blacksun.box.sk
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