There are no 'fast' routes to success or 'secrets'.
Ideally you want some kind of portal site, that keeps visitors returning time after time. Then you can charge advertising fees.
Whatever you go with, the idea needs to be something that 'does the work' for someone else. Er, people don't like to waste time, nor do they like thinking or making much effort to find something. But whatever you choose to base a site on, you'll need money to promote it. Creating content is all fine and dandy, but you need that tremendously popular site first to build the content around, and it must be done in such a way to NOT look like a sales site. Yellow and black writing and hypnotic pitches will turn people away - and your idea has to keep them if you ever want to make money off the web.
Okay, what I will tell you is Don't ever ever chase fast cash or secrets or free advertising - it simply doesn't exist and the proof is in abundance on the web.
Authority sites are popular mainly because people search for information, but every site 'thinks' it's the bees knees, and this the problem - competition!
You want to hold the monopoly on a niche, with the idea of appealing to an audience and keeping them at your site. It has to be interesting enough to keep exisiting visitors/members while attracting new traffic. But have no illusions - it's going to cost you dearly in time, but more in money at the start anyway. Starting a business is such a complex topic and the website industry is too vast to cover on a forum, people study for degrees and professional diplomas and yet still wouldn't give it a go - it's such a risk!