What is the top website search engine in your opinion?

1. Is it google custom search engine or does anyone know any other out their (besides google search engine) that gives the best relevant search for your website (since it will not be used for making $)? I am talking about a search engine to search within your site, just like whats on top right corner of cnn.com

2. If you have a few moments, can you let us know which one you use on your website and why do you use it instead of any other out their?

Maybe their is some confusing but i am talking about a search engine to search within your site, just like whats on top right corner of cnn.com

I use Google. It's simple and seems to work fine. That being said, I don't really view it as a major part of the site and often don't use it.

I use Google and sometimes inbuilt search functions of script which I am using... Both are good but Google is easy to handle...