Bitcoin (2009) was the first cryptocurrency on the market. Since the boom of Bitcoin and Ethereum in 2017, many Cryptocurrencies have come up out of nowhere, eating off Bitcoin's popularity.

Bitcoin was introduced to the world in 2009, since then it has experienced a small, but steady and reasonable growth. That was until professional private investors, later corporate investors and most recently even established banks like Goldman Sachs or Vontobel have started to get involved with the cryptocurrency. Since the early summer of 2017, Bitcoin's value has skyrocketed, making many early Bitcoin investors and holders rich over night. This gold rush has attracted many fortune seekers and entrepreneurs jumping on the cryptocurrency train and creating their own, more or less successful cryptocurrency tokens, while many crypto beginners don't know that many "new" cryptocurrencies are actually based on the blockchain (Bitcoin) or other "first hour" cryptocurrencies like Ethereum or Ripple, which makes many new cryptocurrencies obsolete. However, other cryptocurrencies are eating away Bitcoin's cryptocurrency market share, which may cause troubles for the price and value development of Bitcoin in 2018 and may lead to a declining trust in cryptocurrency in general, due to high volatility.
Ethereum
Ethereum is the rising star of the cryptocurrency market. It has become the third largest digital currency in just over two years, booming in value and spurring the rise of hundreds of new Bitcoin rivals. Started in 2015, the value of Ethereum has increased rapidly. Check out this interesting review :

Monero
Monero is a unique altcoin to hit the cryptocurrency world, offering a private digital currency that is secure and untraceable. Monero is accessible by everyone and open source, allowing everyone to become their own bank. Learn more about Monero :

Ripple
Ripple is a sole enterprise blockchain solution in the world for global payments. The developers realized that despite the numerous advances in technology, the infrastructure for payments we continue to use today was actually built way back :

Litecoin
Litecoin is one of the oldest cryptocurrencies in existence and launched in October 2011. Litecoin is a great, and smaller way to exchange goods and services, but Litecoin is not perfect. It shares many of the characteristics of Bitcoin but strives to be lighter and faster :

Dogecoin
Dogecoin is a quite unique cryptocurrency. It was released to the cryptocurrency market in late 2013 and differs from the other cryptocurrencies by quite a bit. Like most new tokens, Dogecoin was initially released without a large number of coins. Take a look at the review here :

Cardano
The Cardano project may be a next generation blockchain, making a new localized economy, and democratising finance in rising markets, featuring a democratic governance model which will let the project evolve, and a visionary treasury system to fund its sustainably :

Covesting
Covesting, website online at Covesting.io, allows investors from around the world to compare the performance of hundreds of professional crypto asset managers, then mirror their trades automatically. Let’s take a look at how Covesting differentiates itself from other copy-trading platforms :

IOTA
IOTA is currently ranked 7th largest cryptocurrency by market capitalisation, making IOTA one of the most exciting platforms of 2018. The IOTA ICO occurred in November of 2015. Watch the review :

Waves
The Waves Platform allows users to trade cryptocurrency and issue, transfer and trade assets. The wallet has a built-in decentralized exchange platform that can be used to exchange assets, cryptocurrencies and fiat tokens :

Tron
Tron has gained popularity in the social media and cryptocurrency circles. It has even won some props of the most potential cryptocurrencies in the world. Overall Tron has a great potential for the future, depending on how it will be managed :