platforms A-Z

ANT: Platform -China Ant Miners- gonna be Yuge!
Ardor: Platform, NXT 2.0, focus on trimming the block chain size
ARK: Platform -new-

BNB binance.com
Bitcoin OMNI
Bitcoin Cash Memo Bitcoin.com
BitScaleVersion Taal.com
BitShares: Platform
BiteBalls: DAG-blockchain, in App chat bot trade
Blast:
BlockNet
Burst: Platform; mined using free hard drive space ("proof-of-capacity")
CROWN: Platform; mined using AuxPow
DigixDAO: Ethereum-based goldstorage INc.
Emer: POW chain, Name Systems, Blockchain-based record-keeping
Ethereum: Centralized application platform running 'smart contracts
Ethereum Classic: d-Centralized Ethereum where [the Code is the Law]no FORKs!
Eth3.0 staking
eXpanse: Ethereum-clone, smart contract, franko
Factom: Blockchain-based record-keeping system INc. (JoinStart)

HIVE: steem English
HZ: backwater, platform, old, became BLOCK
Huntercoin: Human-mineable coin where coins are harvested by playing a game
Iconomi: Ethereum-based VC platform
Lsk: Platform, Javascript application platform
SAFE Network (a decentralized data storage and communication platform), MAID vaporware

music:Ethereum-clone, smart contract pay-per-play

NEM: NXT-clonewith modified PoS system ("proof-of-importance")
Namecoin: Decentralized Domain Name System (dDNS)
NIX:
NXT: Platform, First w/ assets pure proof-of-stake, forging, devs moving out the Ardor

Pyrk:

Qora: Platform, open source hard core, no lead dev
Qredit:
Qtum:

RAD: Platform, ?
RISE: Platform, Lsk fork, dead

Stratis: dApps, blockchain-as-a-service (BaaS) platform for businesses
Steem: Reddit-esque social networking/blogging platform
Storjx: asset, buy/sell hard drive space THE CLOUD, OMNI
Sia: buy/sell hard drive space THE CLOUD, POW network
SYS:

TRX

ubq: POW, Ethereum-clone, smart contract jyap
Waves: Platform, russian devs
XEM