Great Websites if you do anything with Network Security

Generally good sites for getting DNS information, identifying bad sites, or identifying malware

http://centralops.net/co/

http://www.malwareurl.com/listing-urls.php?urls=off

http://www.malwaredomainlist.com/mdl.php?search=172.30.33.5&colsearch=All&quantity=50

http://www.mynetwatchman.com/ListIncidentsbyIP.asp

http://www.domaintools.com/

http://www.threatexpert.com/

http://www.siteadvisor.com/

http://www.trustedsource.org/

http://www.unmaskparasites.com/security-report/

http://www.anti-malvertising.com/

http://www.malwareurl.com/search.php?domain=&s=www.arlingtonva.us&match=0&rp=50&urls=on&redirs=on&ip=on&reverse=on&as=on

https://www.arin.net/index.html

http://www.netscantools.com/nstpro_ping.html

http://www.apnic.net/

http://www.spamhaus.org/sbl/index.lasso

Javascript Deobfuscation
http://wepawet.cs.ucsb.edu/index.php

The guy who made the javascript packer (source code is here)
http://dean.edwards.name/