Affiliate programs work -- if all players are following best practices, OPTIZMO says.

Shoppers plan to spend more this holiday season -- and email is the leading channel, outperforming social media, a Tinuiti study finds.

Workers cite email's convenience and flexibility. And they dislike switching between apps, Spike reports.

Sara Varni has one email newsletter for developers and may start another for non-techies. But email is only part of the marketing mix, she emphasizes.

It's the fastest-growing problem, although inbox crowding remains the biggest challenge, Validity and DemandMetric report.

Gearing up for Black Friday? Better look at these optimal discounts from RevTrax first.

One amendment requires that data brokers register with the state AG. But B2B firms have a one-year exemption for some provisions.

Emails are seen as useless when they contain overt marketing and have unclear subject lines, PR Newswire finds in a study.

But consumers are still spending over three hours a day on work emails, and over two hours on personal messages, a study finds.

The Sailthru Index ranks retail brands by performance in several channels, including email.