When promoting a sportsbook over a casino it is very important that you layout enough information to the player before clicking through to us, as the player will use the information you provided on the website to help him decide whether he should deposit or not.
Some thing to do:-
Do add text links on your website
Do clearly explain the bonus on your site
Do add a sportsbook review to your site
Some things not to do:-
Do not become a banner farm
Do not promote rediculous bonuses with no proof
I hope this helps.