I've recently discovered Aquila magazine and have taken out a subscription (it's not available through shops) for dd1. She loves it getting it through the post each month and reads it for ages.
It's aimed at lively, non pop-culturey children, but the content isn't too heavily educational -- lots of jokes and fun articles too. Apparently it's also v. popular with families based abroad or home-edding.
I have no connection with them, btw, just v. pleased and wanted to plug it a bit -- it's a joy to see something aimed at older kids that isn't just tacky popstars-and-soap-opera tat.