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It's also important to note that the Google API is experimental and you are limited to 1,000 searches per day. I implemented it on one of my site and it was really buggy. Sometimes the characters would come out as nonsense.
If you're just wanting to add the ability for google to search your site, just add a google search box inside a block. It's free and only takes a couple minutes. See below:
Link:
Add Google to your siteAdditionally, if you're an Adsense partner, you have even more options to customize your search block. The Adsense program is an excellent way to generate additional revenue through targetted advertisements, and it's free to join. Another benefit of Adsense is it gets the Google robot to spider your site more frequently since Google needs to target ads based on your content. See below:
Link:
Become an Google Adsense PartnerThere are several other ways of adding Google to your site without using the API. I recommend using the search function at the top right of your screen as well as checking out the module repository at
SourceforgeHope this helps.
JMorris