Today almost all online marketers use e-mail. Moreover, studies conducted in January 2009 by two agencies confirmed that most companies behave in the same way when it comes to basic tactical decisions.
The survey held by Smith-Harmon showed that the greatest percentage (39%) said, in 2008 Monday and Tuesday were the most popular days to send e-mail. It can be presumed this is, because they had the greatest chance of reaching their targets. Thursday and Friday were close behind (37% and 36% correspondingly). Only less than one-half as many (16%) said Saturday was the most popular day to send e-mail.
Epsilon, who researched the relationship between subject line length and response rates, said shorter subject lines were more beneficial than longer ones. Moreover, the company found out the relationship between line length and response was weaker than it was generally thought. In addition, subject line word order, word choice, brand and audience awareness were critical.
eMarketer estimated e-mail ad spending to reach $488 million in 2009, against $472 million in 2008.