Spider:
- A software program that crawls the Internet by following links and indexing webpages.
Spiders are the basis of all search engines. Google, Yahoo, and MSN utilize these programs to index the content throughout the net. This is why the debate between nofollow and dofollow links and their effect on search indexing rages on.
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Glossary Definition From ABC’s of Online Marketing by Alexandra Wharton, Issue 22, Revenue Magazine
