Email was the No.1 tactic that marketers targeted for increases in the run-up to the 2009 holiday season, followed by SEM & SEO, online banners and coupons. Also, according to MarketingSherpa, emails to house lists or rented lists generates approximately 10 to 20%  of website visitors to eCommerce sites.
“Email marketing remains the underfunded, underappreciated bulwark of online marketing.  Although it routinely gets good reviews from all types of online marketers, email is less likely than other tactics to get its own line in the budget, or to be routinely upgraded …