What happens to my bar codes if Bar Codes Talk were to go out of business?

Nothing. Although that would be a sad day, nothing would happen to your GTIN's. You own your GTIN's outright, for life. This ownership does not expire and is not linked to us after the point of sale. Bar codes are a static, passive technology; the GTIN is set and doesn't change or become modified in any way during your product's life-cycle.