To participate in the webmaster talk forum adsense sharing.
Anyone have any idea whether you are supposed to put the parentheses around the pub id like this "pub-XXXXXXXXXX" or without????

After logged-in to Webmaster-Talk.com, enter your member control panel. Towards the bottom of the page and along the left side navigation you will find a link titled "adshare."

From there, you will simply enter you Google AdSense Client ID (including the beginning "pub-") and optionally a channel ID. Click Save and you are all set!