Stickeroid - Rate Everything
Looksy for iMessage - Live video chat stickers
Sticker.Place API - Get stickers for your app
StoryTracker - A library of relevant campaign stories saved for 30 days.
Sticker List - Discover the best stickers daily and publish your own.
Personal Sticker Maker for WhatsApp - Personal Sticker Maker for WhatsApp is a sticker making an application that works with every type of social media application you have currently working on your device.