search_exclude_nid
Sometimes it's necessary to exclude single nodes from the site search. An example use case would be, if you use the module "Insert view" to insert views into the body text of a node, which outputs a list of other nodes. A common problem is here, that the listing node is found as a second unwanted search result as it displays content of the listed item as its own (body) content. With this tiny module you can exclude these listing pages or other unwanted node pages from the search result by entering their node ids into an exclusion list.
This module does exactly this and nothing else.
Alternative modules, which offer similiar (much more) functionality:
http://drupal.org/project/custom_search
http://drupal.org/project/search_config
If you need the same functionality for Search API have a look at:
https://www.drupal.org/project/search_api_exclude
Credits
This module was built with the support of Sparks Interactive - a New Zealand company supporting the Drupal Community!