how to make a website?

[Matthew]

It would take an incredibly long time to learn all the knowledge to even have a successful attempt at it (months). You'd have to learn about hosting, SEO, purchasing a domain, optimizing and maintaining a website, HTML, etc.

However, SEO is not necessary if you're only going to make this website 'location limited' (Your college only). If that's the case, then it wouldn't take a long time at all. You could set everything up within a week at most.

Hosting might cost you $10/month and the domain would cost around $10 a year. Make a catchy domain that is not to long and easy to remember. Limit it to less than ~10 characters. You might have to purchase the layout and applications for your website unless you could make it with your own team and those cost in the hundreds of $$$.

Also, to get paid for advertisements on your website, you'd have to apply for a company like Google or Yahoo!/Bing who sells 'clicks' on the ads for $$$. In order to even get accepted, you'd have to have a near-complete website with content on it.
Let me run the summary of what would happen:
0) Learn the information
1) Buy domain + hosting
2) Setup website with everything
3) SEO work/advertisements (optional for SEO)
4) ???
5) Profit