According to a recent survey of 311 marketing executives, conducted by The McKinsey Quarterly, 83% of respondents used email as a marketing tool. That's well ahead of display ads (73%), paid keywords search (63%) and branded sponsorship (48%). Video ads, while certainly climbing, came in at 33%.

What's interesting to note are the responses to future online marketing spending. In terms of increase in spending, paid keyword search led the way with a 71% increase projected over the next three years - followed by email (51%) then branded sponsorship (69%). Projected future online marketing spend is dominated by video, with a whopping 74% increase expected over the next three years.