spamming

n. simultaneous sending of an irrelevant message to a large number of discussion groups on the Internet (Computers)

Spamming is the abuse of electronic messaging systems to indiscriminately send unsolicited bulk messages. While the most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, wiki spam, mobile phone messaging spam, Internet forum spam and junk fax transmissions.
See more at Wikipedia.org...

Noun
1. unwanted e-mail (usually of a commercial nature sent out in bulk)
(synonym) junk e-mail
(hypernym) electronic mail, e-mail, email
Verb
1. send unwanted or junk e-mail
(hypernym) e-mail, email, netmail
(classification) computer science, computing

n. spamming, simultaneous sending of an irrelevant message to a large number of discussion groups on the Internet (Computers)

spam