Disney’s Wondertime will increase its rate base next month to 500,000 from its current 400,000, the company announced today.

The 25 percent increase, slated for the February issue, follows a frequency increase in 2007 and increases in advertising pages (61 percent) and gross advertising revenue (118 percent) last year. Says publisher David Mevorah: “We’ve stuck to our core message since the launch and it’s working.”

The magazine launched in 2006.