There are no tricks, with millions of website users around the world everything that can be exploited has been exploited and google shuts it down very fast. You know whats a great way to promote a website on google however? focus less on google on focus on things like word of mouth, email campaigns and social media, when people start talking about you and your website online google will pick it up. Otherwise there is always adwords, however that is also not the easiest of ways.