Farcaster Referral

One of the onchain social networks is Farcaster. It's like Twitter, but your posts and profile aren't controlled by a company.
To start using Farcaster, you need to use the Warpcast app. Once your profile is made, some other apps (like Firefly) can post on your profile.

Warpcast has a referral system. If you join using the link on this page, we both get 50 Warps (enough to connect 5 third-party posting apps).
Note: joining Farcaster is possibly not free. I don't know the exact cost.