Those of you who submit product feeds to Google Product Search, aka Google Merchant Center may want to know about a new advanced usage setting they just released.
As Ronald from Google describes in a Google Merchant Center Help thread:
In order to give you more control over your feeds and items appearing in Google Product Search, Adwords product extensions and Google Commerce Search, we’re launching some advanced feed usage settings in the Merchant Center. For merchants who are only using Google Product Search, there is no need to change any settings; those who are using either Google Commerce Search or product-based ads formats can use the new "Set advanced feed usage settings" link within the Data Feeds tab to exclude or include a feed for a particular destination. For item-level control, merchants can use the new "exclude destination" attribute in their feed. To find out more about these changes, see this article in our Help Center.
You can visit here for more information on this feature.
There has not been that much discussion on this topic but with the value of product extensions, it seems like a no brainer for many advertisers to look at this a bit more closely.
Forum discussion at Google Merchant Center Help.