AP&Q American patchwork and Quilting is a great standard magazine designed for beginners through advanced piecers and their on line "All People Quilt" is a good teaching forum that has lots of ways to help get started.
Personally, I think Quilting Club of America is geared more toward the selling of products.
There are lots of places to search out.
Quilters Newsletter Magazine is my favorite Just a bit more advanced and the combination of both magazines together would be a great combination to learn about every thing from color to techniques.
peace