Donna McCarthy of SearchMarketingGurus.com and DMC Affiliate Consulting presents this week's Tuesday's Tips in online marketing. She explains the differences companies will run into when looking at who should run their affiliate marketing programs. There are distinct differences between having a network client services program link LinkShare or Commission Junction run your program as opposed to an Outsource Program Management firm. From lower costs, to more one on one attention as well as experience, OPM's might be the better way to go.