Fred Wilson had a good post yesterday titled, Syncing Up Your Credit Cards. In it he makes the case that there’s tremendous value coming from linking our credit cards with innovative web services. He uses BillGuard and Foursquare as examples. I posted a comment on the post that triggered a pretty interesting discussion. My comment points out how I believe that linking credit cards back to deal sites creates an enormous market opportunity for better ‘deal making’ and better merchant marketing.

Rather than reiterate the comment, I’ve posted a screenshot of it below. I’d encourage you to go back to Fred’s post as there’s some very interesting discussion happening in the comments section.