Creating a search engine

Hi Guys and Girls,

I am looking to create a search engine for my own web site. So for example if someone search for the word B2B, all pages containing this word will be displayed in a result page.

How is this done? I was hoping someone could point me in the right direction, please refer to tutorials or 'out-of-the-box' solutions, as I haven't managed to find what I am looking for.

I assume it requires a database or perhaps a scripting of some kind when creating a search engine? If so, I understand Coldfusion (CF)well, but are not limited to any specific language.

I use Macromedia's Studio MX +CF - please advise, and thank you in advance...

Henry