Slot land is giving away $5, $7, and $10 chips for 4th of July, check your emails or log into your account and click the 'promotions' tab.
Via email:
"Join us at Slotland as we celebrate Independence Day this weekend!
Freebies are up for grabs as well as exciting match bonuses that will boost your play. Make sure you also play our featured game for this promo Jacks Or Better and you can win some prizes!
First things first, spin the newsletter mini-slot to start playing."
