During the development of any portal site one should consider basic wording in the critical parts of the hierarchy, e.g. the main branches of the site appearing in site paths. Since these matters can be most confusing at the times, Search Engine Optimisation techniques can come to rescue.
In this case it's the casino site that deals with funding possibilities of various casinos and poker rooms with a link to eWallets. The wording possibilities are payment method vs payment option vs deposit method vs deposit option.
So how could SEO help in the circumstances? Well, wouldn't it be nice to have a wording that provides most references from Google? It is the reasoning behind the following research.
Given the above mentioned 4 terms we are going to find out what is the most indexed term by the largest casino and poker related sites in Google.
As you can tell from the above chart, the wording varies in between the different casinos but the word to use here clearly has to do with deposit.
Another interesting matter is that it seems like Full Tilt Poker, PokerRoom and PokerStars are the best performers SEO-wise having all the terms indexed while other great casino sites are poorly indexed or not indexed at all, e.g. bwin. Must be somewhat a huge drawback, no?