Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
FameBit - Easiest Way to Find, Hire, and Work with YouTube Influencers
Yout - YouTube to Mp3 Converter
inzpire.me - An end-to-end solution for influencer marketing
You-Get - Command-line utility to download media contents from the web
Insense & Paid Media - Find creators for short-term and long-term partnerships