How much DOGE can I get per day mining with a i3 cpu?
Not many. But if that's all you have, why not give it a go? Today it might be worthwhile..after the weekend it won't be for sure.
You'll get around 3-9 Khs which will get you some shares. Use CPUminer and when you get a share it let's you know with a (Yay!)
So I got this:
[2013-12-17 16:28:51] accepted: 20/20 (100.00%), 13.62 khash/s (yay!!!)
what does that indicate exactly? Thanks.
You've got 20 accepted shares for whatever pool you are running on.

At a rate of 13.62 khash/s.