Hi
I definately say Think outside the box, if you have a unique content casino review site that you are trying to get to rank on google for “online casino reviews” you are not going to do very well if your new to the industry. Why? because that’s what EVERYONE else is doing.
You need to find a sub niche/s in the gambling industry that’s untapped and get in to that. I do PPC on yahoo and MSN and Im advertising on tonnes of searches where it’s only be advertising, I get top spot for 10p a click and the traffic is all gambling traffic, all targetted.
Another way: target other niches and then get them into gambling, there are plenty of niches where the rankings are much less competitive and the PPC is a lot cheaper but the traffic will still respond to online casino banners.
It all comes down to buying and selling traffic, you can buy gambling traffic for cheap or free you will do well.
There’s my 2 cent’s that could actually make you rich with a lot of hard work!
Daniel