Welcome to CAP, Andre! :wavey:
Of the two domains, I like “internet-casino-news.com” better, primarily because of the .com extension. As Dominique suggested, you’re more likely to get type-in traffic with a .com extension. But really, that’s the only advantage I can think of. The domain name doesn’t matter very much to a search engine. The search engine mainly cares about keywords, content, and inbound links. Little emphasis is placed on the the domain name.