Findnlink - Find people to work with on your ideas.
Audio Hero - Over 250,000 royalty free music & sound effects for videos
Founders Nation - Find or become a startup cofounder
TunePocket - Download 11,000+ royalty free music tracks and sound FX. Buy once, use forever. New music added daily. Save over 50% compared to most popular similar services. Incredible value!
Find A Maker - find a partner for your next project
Premiumbeat - Premiumbeat.com provides high quality Royalty Free Music.