A social network digital coin, the ReddCoin (RDD) had forked from Litecoin as far back as in 2014. It is currently listed by a few exchanges with the possibility to buy the coin for fiat currencies. The ReddCoin blockchain “uses personalized IDs for social media tipping”.
SALT an Ethereum-based token of the eponymous lending service, where one can borrow cash in exchange for collateral in crypto. The currency pairs including this token are listed on a few exchanges.