As a dilettante sports blogger, I spend quite a bit of time following legitimate, established sports bloggers. One of my personal favorites in Paul Lukas' "Uni Watch" - the guy notices everything and helps the uninitiated develop an appreciation for the aesthetic side of sports. Check him out; he "gets it" (his term):
Also, as a scholar of the Renaissance, I *love* how the colors, crests and fanfare of athletic uniforms are modeled after medieval and early modern heraldry and regalia. A few personal favorites (logos, *not* necessarily teams) that also "get it": KC Royals, Baltimore Ravens, Oakland Raiders, Real Salt Lake, Real Madrid, Racing Metro 92, USA Perpignan, Olympique Lyonnais, Paris Saint Germain - all classic, not overly wrought, uncommercialized in the global age. Your favorites?