Some 49% of marketers expect their online spending to grow this year with dollars flowing to e-mail marketing (55.5%), banner ads (37.6%) and e-mail newsletters (44.9%) among other tactics, according to PROMO’s annual Interactive Marketer Trends Study, which was released yesterday during the Interactive Marketing Summit in Las Vegas.

And as a signal that marketers are taking new media more seriously, 65% are developing their own online campaigns as part of a larger promotional strategy.

Still, not everyone is increasing their budgets. Some 35% expect online spending to remain flat this year. ROI continues to be a challenge, with 14% of respondents admitting that they don’t even measure ROI. Some 28% can’t compare online and offline returns.

“Marketers rely on online tactics more than ever as a core part of their strategies. Almost 65% of respondents told us that they develop online promotions as part of their overall marketing strategy,” said Larry Jaffee, editor in chief of PROMO.