I've created another little Oddmuse module to display a Google Free Search or Adsense Search box on an Oddmuse wiki. I called this one google search.pl. The previous module, adsense.pl, displayed AdSense banners above pages.
Instead of (or in addition to) the usual search box, a Google search box can be put below every page. When an administrator is logged in and enters the Administration page, the normal Search & Replace boxes are shown.
To use this module on your Oddmuse wiki, take the following steps:
If you want to have the normal Oddmuse search box shown, edit the module and set the variable $showOddmuseSearch to 1.