link farm

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Related to Link farming: Link building

link farm

(file system, Unix)
A directory tree that contains mostly symbolic links to files in a master directory tree of files. Link farms save space when one is maintaining several nearly identical copies of the same source tree - for example, when the only difference is architecture-dependent object files. They also mean that changes to the master tree are instantly visible in the link farm. Good text editors provide the option to replace a link with a new version of the target file when saving thus allowing the farm to have its own versions of just those files that differ from the master tree.

E.g. "Let's freeze the source and then rebuild the FROBOZZ-3 and FROBOZZ-4 link farms."

Link farms may also be used to get around restrictions on the number of "-I" (include-file directory) arguments on older C preprocessors. However, they can also get completely out of hand, becoming the file system equivalent of spaghetti code.

link farm

A group of websites in which each site links to all other sites in the group in order to promote a high page ranking on the search engines. Search engines have learned how to identify link farms and prevent them from being indexed. See link site and Google algorithm.
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Link swapping, link building and link farming have always been bad business, while pertinent, relevant, useful content will always rank most highly with Google--and your prospects.
Link farming (6), PR farming (7), link baiting (8).
Sadly, Google's new war on link farming could mean many legitimate companies face search engine demotion for getting too many links from people who genuinely like their products