Unsolicited advertisement

Unsolicited advertisement comprise all of, but are not limited to:

• Tradional junk mail ("direct mailing", in industry terms)
• Spamming, in particular
  • Email spam,
• Telemarketing nuisance calls,
• Junk faxes,
• Unsolicited goods, etc.

for advertising and marketing purposes. Whereas traditional postal advertisements produce huge amounts of scrap paper and plastic waste, modern electronic forms consume bandwidth and data storage space. Various methods exist for prevention of and defense against unsolicited advertisements, including opt-out from email lists, entry in blocking lists, like the National Do Not Call Registry, etc.. Legislation has produced countermeasures like the Telephone Consumer Protection Act.