Backer News - Fresh crowdfunding projects
Feather Attribution - A free and tiny javascript library to track UTM tags, ref and referrer data client side so you can store these in your own database.
The 25 Days of Ideas - Free resources for coming up with startup ideas
Voucherify - API-first Promotion Engine for promotions & loyalty.
Republic - Where everyone can invest in startups & tokens
ReferralMagic - Turn your users and customers into referral magnets.