HTTP Switchboard also uses the work of other people. As of v0.7.6.1:

• Contributors
• All people who took time to report issues.
• Third-parties:
  • punycode.js by Mathias Bynens.
  • Mozilla Foundation's Public Suffix List: this allows sensible management of domain names
  • jQuery
• Blacklists of host names:
  • Peter Lowe's blacklist: Ad server hostnames for blocking ads (you may contribute to it!)
  • Malware Domain List: MalwareDomainList.com Hosts List
  • DNS-BH – Malware Domain Blocklist:
    • justdomains
    • immortal_domains
  • hpHosts:
    • hosts.txt.
    • ad_servers.asp.
  • Dan Pollock's blacklist
  • MVPS HOSTS
• Arts:
  • Font Awesome, for the various icons throughout.