If you want Howard Dean as DNC Chair, things you can do include:
1) Go to
http://drafthoward.com/
and sign the petition.
2) Go to
http://drafthoward.com/
and find the contact information for your state's DNC Chair voters and contact them, politely asking them to support Howard Dean.
3) Put a "Dean for DNC Chair" logo on your website.
On the lower right of:
http://MoveLeft.com
is a "Dean for DNC Chair" logo you can right-click to download and then upload to your website.
It's for linking to:
http://drafthoward.com/