Use absolute links instead of relative links.
Move the screenshots of the poker rooms to after the first paragraph or two of content.
I’d go with a different font than the cursive script looking font you’re using now.
I would center the links in your navbar on the left. Or make them a bulleted list. Or add some buffer space betwen the edge of the table and the text.
I would go for more personal and unique content in the reviews. Right now there’s a big focus on the features of the cardrooms like the games offered, the limits, and the bonuses, but all that information is available anywhere else. The real value on the site lies in your unique insights into the poker rooms–stuff like the drawbacks of each site is original an unavailable anywhere else.
I think 3 banners on each page should be plenty–one on top, one in the footer, and one in the left navbar.
You do need to make some of the names of the poker rooms clickable links to your affiliate code, but I wouldn’t necessarily make all of them affiliate links.
I’d make the page background a different color from the table background.
Hope that helps–it’s a great site.