The most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media: instant messaging spam, chat spam, mobile phone messaging spam, blog, wiki, and guestbook spam, spam targeting search engines.
Instant Messaging Spam--Instant Messaging spam, sometimes termed spim (a portmanteauof spam and IM, short for instant messenger), makes use of instant messaging systems, such as AOL Instant Messenger, ICQ or Windows Live Messenger.
Chat Spam--Chat spam can occur in any live chat environment like IRC and in-game multiplayer chat of online games. It consists of repeating the same word or sentence many times to get attention or to interfere with normal operations. It is generally considered very rude and may lead to swift exclusion of the user from the used chat service by the owners or moderators.
Mobile phone Spam-- Mobile phone spam is directed at the text messaging service of a mobile phone.
Blog, wiki, and guestbook spam--In 2003, this type of spam took advantage of the open nature of comments in the blogging software Movable Type by repeatedly placing comments to various blog posts that provided nothing more than a link to the spammer's commercial web site.
Spam targeting search engines--Spamdexing (a portmanteau of spamming and indexing ) refers to the practice on the World Wile Web of modifying HTML pages to increase the chances of them being placed high on search engine relevancy lists.
Avoid having your email messages instantly deleted by your subscribers. If your emails are confused as spam, guess what, your customers won’t get a chance to read them. Your email only sometimes ends up in the spam folder or junk folder! Therefore, you must avoid these 4 common mistakes in your email marketing campaign.