I've been subscribing to QuiltersNewsletter for about 15 years now, have yet to be disappointed in any edition. Have had others over the years, and pick up some at the newstands.
What I've liked over the years with QuiltersNewsletter is the variety of projects, from beginner to advanced - something I could do just starting out, and something to think about to stretch my skills. Their mix of ads to articles is pretty good - I never get the feeling that they were having a bit of a 'lull' in their creative thinking :)
Don't worry about limiting yourself to any one thing - look at everything! Internet, books, magazines, libraries - don't forget to asking quilting friends to borrow some of their favorite resources! Guilds have lending libraries - ours has both books and DVDs, and also a nice collection of the donated photo CD's from shows our members have attended.