Easy way to make gloss
In this tutorial I will show how to make things shiny in illustrator, this is the easiest way I know of.
First make your shape however you want, I will be using a star for this tutorial, like below.

Next take the pen tool, make it so theres no fill, and draw the shape you wish you would like the shine to take, through your shape, so something like below:

Now select the star, Copy it, and paste it(Cntrl+F).
Select the line you drew and the star copy.
Goto Window > PathFinder and press Divide.

Your star should look something like this,

Double click the star, click the bottom half and delete it. It should look like this when selected:

Now remove the stroke, and change the fill to white.
Goto Object > Path > Offset Path, and enter -2 pt in the offset box.
Select the outer offset and delete it. (If needed you may need to double click the white to allow the selection of the outer offset.)
Set the opacity to about 30% and thats it
Simple enough. My results are below.

December 14th, 2007 at 2:24 am
Nice man! Exactly what I need =D
December 26th, 2007 at 7:05 pm
Are you kidding me? It’s that simple?!
Thanks, you just saved me 20 minutes of work