There aren't too many fashion-y blogs that I read on a regular basis, but there are two that I definitely look forward to on a regular basis.
Feather. Feather is awesome! Here's the author's own description: "If you’ve ever checked the forecast and wished the weatherman would just tell you what to wear, Feather is your place. Each night, to prepare you for the work week, Feather breaks down the next day’s forecast into style inspiration that actually makes sense." Lots of cute outfits, but at way-out-of-my-league prices. Save only the ones that you can re-create either in your own closet or at Target.
Frugal Fashionista. Whereas Feather is for my dream budget, Frugal Fashionista creates daily outfits (based on what the celebrities are wearing), but using cheap-o stores like Delia's, Target, and Forever 21. Also alerts you to upcoming sales.