You're talking about static websites. As a hobby PHP developer, I must admit cr0sh is right. My dad is setting up a webshop, and the company that is going to build it asks €6.500.
For a system that I am aiming to, $20.000 seems reasonable. However, as I don't have that much money, I'll develop it myself (I have already written some classes of it, just to maintain my PHP skills).
I bet with the number of people on here talking about this we easily have the skills to whip up a decent website.
I think the Arduino failed to get registered status because is is simply a name of a person, it's like trying to register a "Peter".
That was a long time ago.
Arduino is now a registered Trademark in the EU and US so it can't be used in the name of something.
I'd suggest that keeping it more open to include projects from similar microcontrollers wouldn't be such a bad idea either, ATtiny chips, projects on wiring boards etc. A magazine for arduino folk need not just be on arduino boards or arduino hardware as many people use home made boards and don't use the IDE but theie projects still turn up on the forum or online as an 'arudino project' due to the nature of it probably using the arduino bootloader on an ATmega chip.
Seriously. There already exist quite a few magazines that cover the target market, and are usually pretty hungry for well-written articles. Which they'll pay for. Once you've start getting a bunch of people complaining that their articles are getting rejected by Nuts and Volts, Make, Microcomputer Journal, and etc because they have "too many arduino articles", THEN it'll be time for a separate magazine.
If you look around, there are an awful lot of magazines/websites around to satisfy people's hunger for arduino projects.