How to make an advanced search engine easily?

[Abbanoub]

Hello,
I am interested to know how I can build an advanced search engine just like google, yahoo or bing easily. I am not interested in using Google Custom Search Engines because I believe this is not particularly advanced - also I would like to connect my search engine to my other websites; which is similar to yahoo as it has its search engine, news page, mail etc all as one network. How can I do this?

Also how can I provide my own e-mail service like google and yahoo? I know this is a very difficult project, but I am very interested to see if I could have any success and earn some money!

Any ideas? Any help is much appreciated - and please only mature answers.

Thank you so much.
I do not quite understand how to do this - plese could someone give me a detailed, but simple step - to - step guide on how to do this.

Thank you.