There are many altcoins that could become explode in this year. However, it is impossible for anyone to forecast what will take place down the road. But I think a critical thinking will help to succeed in picking the correct altcoin. For me, I suggest NEO. It is a potential coin that operates a unique blockchain of its own while its target is to support an intelligent economy by making use of digital identity technology. It likewise supports the digitization of assets and allows for smart contracts, similar to ETH. 

I suggest that it is not a good idea to sell all your altcoins that you are holding just because BTC price is raising.  I suppose that you must give altcoins a good chance for their price will go up too, like BTC. However, it still had better divide your investment, maybe you could sell some altcoins to buy some BTC to reduce the huge risk of your loss and gain more if it could. Everything depends on your own choice! Let's do the best! 

WEEK #7 (5/12 - 5/18)

BitcoinTalk User ID: Daeshim
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### Facebook WEEK 3 ###
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"### Facebook WEEK 7 ###
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"FACEBOOK CAMPAIGN
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WEEK 9 (7/5 - 13.05)
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WEEK #6 (5/5 - 5/11)

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FACEBOOK CAMPAIGN
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WEEK 8 (30.04 - 06.05)
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WEEK #5 (4/28 - 5/4)

BitcoinTalk User ID:  Daeshim
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Number of Facebook Followers: 4955
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### Facebook WEEK 5 ###
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WEEK #6 (4/24 - 4/30)

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"FACEBOOK CAMPAIGN
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WEEK 7 (23.04 - 29.04)
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WEEK #4 (4/21 - 4/27)

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Number of Facebook Followers: 4948
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### Facebook WEEK 4 ###
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I think you should invest in both of them in order to diversify your portfolio. They are both potential and quite safe.

You should invest in NEX. Although it hasn't actually launched or even announced details of its tokensale yet, we're pretty sure it's going to do well. We aren't optimistic that you will be able to put a huge amount into the crowdsale though, because there will be such high demand, they'll probably issue small individual caps.

Ripple still has some growing room left, but meteoric rises like those seen at the end of 2017 will naturally be few and far between, and it’s safe to assume that the price changes will settle into more sustainable ranges. This is especially likely for a coin like Ripple which can benefit from price stability.

Various experts and crypto research websites claims that looking at the current growth seen in the Ethereum Classic is very bright. These experts also expects that the coin going up by almost 75% nearby $57.24. This means that the investors can hold the coin to earn more.

I suggest XLM. The purpose of Stellar is to enable lowcost interbank Money transfers ,control fraud, micropayments. It was developed by a Non -profit Organization called Steller Development Foundation. its current price is $0.61with a market capital of $11,352,762,034.