Spam

Unsolicited email messages. Search engines also like to outsource their relevancy issues by calling low quality search results spam. They have vague ever changing guidelines which determine what marketing techniques are acceptable at any given time. Typically search engines try hard not to flag false positives as spam, so most algorithms are quite lenient, as long as you do not build lots of low quality links, host large quantities of duplicate content, or perform other actions that are considered widely outside of relevancy guidelines. If your site is banned from a search engine you may request reinclusion after fixing the problem. See also: Google Webmaster Guidelines Microsoft Live Search: Guidelines for successful indexing Yahoo! Search Content Quality Guidelines BMW Spamming - Matt Cutts posted about BMW using search spam. Due to their brand strength BMW was reincluded in Google quickly.

Manipulation techniques that violate search engines.

Unelicited emails in large quantities; rapidly repeated scrolling text.

Spam is unsolicited email. Not all unsolicited email is spam, however. Most spam is sent in bulk to a large number of email addresses and advertises some product or -- far less often -- political viewpoint. Spam is an email message that you did not ask for and do not want from somebody you do not know, who wants to sell you something. Also Known As: UBE, UCE, unsolicited bulk email, unsolicited commercial email.

Unsolicited commercial e-mail. Also known as junk e-mail. [Exchange 2007]

Unsolicited bulk e-mail that may contain malicious software. Spam is now said to account for around 81 percent of all e-mail traffic.

Slang 1.Unwanted or unsolicited e-mail messages or mailing-list or newsgroup postings. 2. To send an advertisement or solicitation to large numbers of unsolicited recipients, usually via mailing lists or newsgroups. [Bahorsky]