The Influencer Marketing Stack - Free resources to launch a killer campaign
Frysbe - Frysbe: Make global friends at random and the fling app comes up with features to send messages to strangers from every corner of the world to expand your social circle.
Startup Stash - A curated directory of 400 resources & tools for startups
Unbordered - Unbordered app comes up with features to help you in finding the perfect language practice and exchange partners so you can practice foreign languages right through your mobile phone.
Makerbook - A directory of the best free resources for creatives
PenPal World - Connect with people all over the world