This is a very great article. I think every newbie should have a read at this. They are especially susceptible to scams like the ones mentioned here.
I think one of the biggest form of scams Airdrops. While genuine Airdrops can actually be profitable and should be distributed for free, they've been outnumbered by the fake ones. These fake ones ask for 
 a certain amount of money in Btc, ETH or other coins before withdrawal can be processed only to find out after sending the fee, that your withdrawal was not intended to be processed.
Keep away from these.