As so often is the case with niche sports like motorcycle racing, it's a small, independent site that does the best job or reporting the news. Moto Matters has excellent writers and photographers and produces timely, lively reporting year round. I like the unbiased and unsensationalist nature of their coverage (are you reading this, MCN?) level-heading thinking presented in clear, thoughtful writing. Good stuff always. Oh, and they also police their comments section firmly but not oppressively, so it's blessfully free of the troll-posts and fanboy rants common to many a competing forum.
Coverage of the World Superbikes Championship could be beefed up a little as far as I'm concerned, but it's still better than average in that department.