Delegation:
Steem power is like owning a stock. The stock has a dividend. In traditional finance you earn 100% of the dividend. Here you can choose how that dividend is spent. You can let someone else borrow it, which is delegation and you can upvote stuff which basically says "this person gets my dividend for today."
I had someone loan me, or delegate me 50 sp, as the 20 I had was not enough to use the site in the day time, the bandwidth was always in the -% , is there anyone working on a fix to this, as I did even put some money in here on day 1 and day 2 to buy sp, though 20 still is not stable, keep up the great work.