Use A No-Index Tag To Keep Pages Off Google
To prevent all robots (search engines) from indexing a page on your site, place the following meta tag into the <head> section of your page:
<meta name=”robots” content=”noindex”>
To allow other robots to index the page on your site, preventing only Google’s robots from indexing the page use:
<meta name=”googlebot” content=”noindex”>
When Google sees the noindex meta tag on a page, Google will completely drop the page from their search results, even if other pages link to it. Other search engines, however, may interpret this directive differently. As a result, a link to the page can still appear in their search results.
In closing: If you do not want people to find a certain page online through the search engines then use this noindex tag. Wish we could all add noindex to any page we wanted! This would make search engine reputation management easy (but a dead industry).