"Informal Partners" are those individuals and companies with whom Curbstone has no formal affiliation or contractual agreement. We present them here because we have had experience with their products or services and recommend them.
"Certified Partners" are individuals or companies with whom Curbstone has a formal agreement. This may be where the company is an official reseller of Curbstone products, or where Curbstone has contracted for that entity to provide products or services. Either way, these are folks who have the highest level of trust from Curbstone.