Link farm 88
External links
- Google Information for Webmasters [1]
- Yahoo!'s Search Content Quality Guidelines [2]
- MSN Guidelines for Successful Indexing [3]
- The Dirty Little Secrets of Search [4] at The New York Times
References
[ 1 ]http:/ / http://www. google. com/ support/ webmasters/ bin/ answer. py?answer=35769& hl=en
[ 2 ]http:/ / help. yahoo. com/ l/ us/ yahoo/ search/ basics/ basics-18. html
[ 3 ]http:/ / help. live. com/ help. aspx?mkt=en-us& project=wl_webmasters
[ 4 ]http:/ / http://www. nytimes. com/ 2011/ 02/ 13/ business/ 13search. htmlSpamdexing
In computing, spamdexing (also known as search spam, search engine spam, web spam or search engine
poisoning)[1] is the deliberate manipulation of search engine indexes. It involves a number of methods, such as
repeating unrelated phrases, to manipulate the relevance or prominence of resources indexed in a manner
inconsistent with the purpose of the indexing system.[2][3] Some consider it to be a part of search engine
optimization, though there are many search engine optimization methods that improve the quality and appearance of
the content of web sites and serve content useful to many users.[4] Search engines use a variety of algorithms to
determine relevancy ranking. Some of these include determining whether the search term appears in the META
keywords tag, others whether the search term appears in the body text or URL of a web page. Many search engines
check for instances of spamdexing and will remove suspect pages from their indexes. Also, people working for a
search-engine organization can quickly block the results-listing from entire websites that use spamdexing, perhaps
alerted by user complaints of false matches. The rise of spamdexing in the mid-1990s made the leading search
engines of the time less useful.
Common spamdexing techniques can be classified into two broad classes: content spam[4] (or term spam) and link
spam.[3]History
The earliest known reference[2] to the term spamdexing is by Eric Convey in his article "Porn sneaks way back on
Web," The Boston Herald, May 22, 1996, where he said:
The problem arises when site operators load their Web pages with hundreds of extraneous terms so search
engines will list them among legitimate addresses.
The process is called "spamdexing," a combination of spamming — the Internet term for sending users
unsolicited information — and "indexing." [2]