[http://dev.wp-plugins.org/browser/jeromes-keywords/tags Browse SVN]
Easily embed Google search results within your WordPress site, with the More from Google plugin.
Edit your robots.txt from within Wordpress to control search engine activities.
Adds a sidebar widget to search for song lyrics on the LyricWiki.org site.
Adds a Google AJAX Search box on your site. Options include searching your site through Google Blog Search and/or straight up Google, a second search
The Tiny Search Replace plugin re-adds search and replace support to the TinyMCE Rich Visual Editor