If you shop at Amazon and want a painless way to support Interlink, join Amazon Smiles and chose Interlink. Inc as your charity. The AmazonSmile Foundation will donate 0.5% of the purchase price from your eligible Amazon Smile purchases. Tens of millions of products are eligible for donations. You will see eligible products marked “Eligible for AmazonSmile donation” on their Amazon Smile product detail pages. Recurring Subscribe-and-Save purchases and subscription renewals are not currently eligible to generate donations.