Hi Gerard,
I found Knak (Pierce Ujjainwalla) to be a total game changer for my team. Knak is a tool that allows drag-and-drop email and landing page design. My team did not have in-house designers/developers, but with Knak, we were able to create some really nice-looking and mobile-optimized assets. I would say it's a tool worth looking at if you don't have a staff of in-house designers.
Steve
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