Dear all,
I looked at various threads in the board, but didn't find a discussion about the mining services offered online by crypto-mining companies. I would like to ask if you have tried them and what is/was your experience?

The big companies that I know of are:
Genesis mining/
Hashflare

Small players:
Sun Mining , but be cautious due to this discussion https://bitcointalk.org/index.php?topic=2561604.20
Crypterra

On Wednesday 7 February https://www.hydrominer.org/ will start providing "green" mining services.

Edit: added two more companies and link to relevant thread at bitcointalk

Hi all,
Few days ago I attended a webinar about the ConnectX project and I found out that by hosting a private blockchain on a satellite network all the shortcomings of the current blockchain technologies can be avoided.

It was one of the best webinars I have seen on cryptocurrencies and the blockchain.  It covered the blockchain in detail, problems with certain cryptocurrences and the advantages/disadvantages of other digital currencies.  Whether you are a beginner or have advanced knowledge, this will be helpful.  The webinar covered Initial Coin Offerings and I was shown technology not yet released in the market.  It is definitely worth your time.  Here is the link to register for their next webinar (I kindly ask you to use my referral link in order for both of us to gain 25 ConnectX coins):

https://connectx.com/webinar?referral=HykF6S7Ef&refSource=copy

Whitepaper:

https://connectx.com/wp-content/uploads/2018/01/ConnectX-Whitepaper.pdf