SPAMMING

Spamming

Spamming is the use of electronic messaging systems to send unsolicited bulk message ,especially advertising ,indiscriminately .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, online classified ads spam ,mobile phone massaging spam .internet forum spam ,junk fax transmission ,social networking spam ,social spam ,television advertising and file sharing spam .spam or the unsolicited sending out of junk e-mails for commercial purpose ,which is unlawful .new anti-spam laws are being passed in various countries which will hopefully limit the use of unsolicited electronic communications .

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.

There are two main types of spam, and they have different effects on Internet users. Cancellable Usenet spam is a single message sent to 20 or more Usenet newsgroups. (Through long experience, Usenet users have found that any message posted to so many newsgroups is often not relevant to most or all of them.) Usenet spam is aimed at "lurkers", people who read newsgroups but rarely or never post and give their address away. Usenet spam robs users of the utility of the newsgroups by overwhelming them with a barrage of advertising or other irrelevant posts. Furthermore, Usenet spam subverts the ability of system administrators and owners to manage the topics they accept on their systems.

Email spam targets individual users with direct mail messages. Email spam lists are often created by scanning Usenet postings, stealing Internet mailing lists, or searching the Web for addresses. Email spams typically cost users money out-of-pocket to receive. Many people - anyone with measured phone service - read or receive their mail while the meter is running, so to speak. Spam costs them additional money. On top of that, it costs money for ISPs and online services to transmit spam, and these costs are transmitted directly to subscribers.