Creating a Website

Hello,

I have been considering creating my own website and have a few questions, since I am new to this.

-What is the best way to find a web host for my site (are there any sites that has reviews about the positives and negatives of individual web site hosts) ?

-When it comes to advertising on my website, how do I attract companies to advertise on my website and how can I figure out what to charge (by the click, size of the ad, or by any other means, and how do I decide what to charge compared to other websites in a related field).

- How can I scan my web page for any type of virus / spyware / hackers?

I am very new to this and would appreciate any help from anyone who has their own website or has knowledge in this field. If anyone could give me any suggestions or even a website that has information in detail for creating a website would be much help. Sorry for my English, it is not my first language but I am trying my hardest to learn.

Thank you!!