op can list any site he wants and according to his research on his own website. But he will list just because op sees his list will think those sites are good. Because before depositing a lot of money in a casino site, one does their own research very well and then invests there and gambles regularly. So it's not a big issue which sites the op puts on his website and which sites he puts on the front page.  But to make his site good and trustworthy he must focus more on good casino