There is so much to answer to this - you could probably read day an night for half a year. One good place to read, with many links etc is this 3.5 year long thread:
https://bitcointalk.org/index.php?topic=829576.0
BLOCKNET is my favorite. ( As I see it as the best, superior to competitors)
But ... it is not the only one
Thank you for the great advice! This stuff is so fascinating!
I will check out the link you shared and try to read day and night for 6 months...
There is so much to learn about this subject, it doesn't get boring that is for sure...
If you have time please take a look at my first blogg-post here it is about crypto,
Read here: Will (ETHOS) fix the financial system (and make you rich)?!Thanks for sharing your wisdom @onealfa! it would be nice to hear your feedback @onealfa!