Here's a good video for how to shape and fill your eyebrows for the most attractive effect for your individual face. It shows you where you should make the arch in your eyebrows and where your eyebrow should start and end.

Tricia Sawyer is a Hollywood makeup artist. She's responsible for Sharon Stone's perfect eyebrows.

Eyebrows are probably the most important way to shape your face. This is a long video - nine minutes - but it's worth watching when you have time. (But remember not to overpluck those eyebrows.)