The Voucherify Java SDK by Rspective offers a coupon / voucher platform that can be integrated to existing Java applications. The current version requires Java 6+. Use cases: promo codes, loyalty coupons, vouchers and gifts, mobile apps
Shoutlet, enterprise social marketing platform, has added a contact form API to its plethora of social media services. The API allows developers to gather contact information (e.g. data from an online sign up form) and automatically update the Shoutlet contact database with the pertinent information.