I'm stealing faded_jeans's excellent idea and posting a little explanation for those of you who may not know how to add a palette to the group.

1 - You need to join the group. :) On the Group Home page, click on 'Join this group'.

2 - When you create a new palette, the name of the group will appear in the 'Add To My Groups' section of the page, just above the 'Add Palette' button. Check the box and click on 'Add Palette'.

3 - If you want to add a palette you've already made, go to your palette, click on Edit and scroll down to the 'Add To My Groups' section. Check the right box and click on 'Modify Palette'.