The online vote counts for one-third of the total. The actual process for that is such that "the finalist who receives the most fan votes will get the same number of points for finishing first in that category as the finalist who receives the most number of coaches and/or media votes".
In short, imagine that the fan vote winner gets 10 points, the runner-up 9, etc. So if you do vote (which you can do daily and can vote for up to three), don't just vote for Angie. Pick a couple other girls that you feel won't get the media / coach votes and vote for them as well. That will help Angie out by lowering the consolation points her main rivals will earn.
(Vote at the link.)
