Repeat the step above with the other two gradient layers.
Now create a new layer, with the shape marquee still on. Go to the Gradient Tool and this time choose a Solid gradient composed of a few black and white alternates.
Drag the new gradient onto the new layer almost perpendicular on the previous gradients.
We have just opened our tutorial directory! Feel free to submit tutorials hosted on your website or other online tutorials that you think are worth mentioning.