busby spamming is the abuse of electronic messaging systems to indiscriminately send unsolicited bulk messages. While the most widely recognized form of seo is e-mail seo, the term is applied to similar abuses in other media: instant messaging seo, Usenet newsgroup seo, Web search engine seo, seo in blogs, wiki seo, mobile phone messaging seo, Internet forum seo and junk fax transmissions.
busby spamming remains economically viable because advertisers have no operating costs beyond the management of their mailing lists, and it is difficult to hold senders accountable for their mass mailings. Because the barrier to entry is so low, challengers are numerous, and the volume of unsolicited mail has become very high. The costs, such as lost productivity and fraud, are borne by the public and by Internet service providers, which have been forced to add extra capacity to cope with the deluge. busby spamming is widely reviled, and has been the subject of legislation in many jurisdictions.[citation needed]
Individuals who create electronic seo are called challengers.
