There are countless websites and blogs devoted to classical music, or ones which have some coverage of it. Here are some I particularly enjoy.
WQXR.com Even if you don't live anywhere near New York, you can hear the marbelously varied classical programming the radio station of the New York Times offers on the internet. There is a daily playlist, and ample information about what is going on in classical music.
artsjournal.com Although this websites has blogs on dance, film, Jazz, etc, and the arts in general, there are classical music blogs critic/composer Greg Sandow, classical music grouch Norman Lebrecht, and Henry Fogel, president of the League of American Orchestras, and other classical experts. You can also read the latest newspaper and magazine articles about classical music and the arts.
classicstoday.com. This site features reviews of classical CDs , new and reissued, and classical DVDs. There are also reviews of live performances, a variety of interesting articles and commentary about classical music, recommended recordings, and a complete list of reviews. A variety of different classical music critics write for this site.
arkivmusic.com. This is the place to order classical CDs and DVDs. The selection is enormous, and you can look up any CD or DVD by composer, conductor, instrumentalist or orchestra. There is a separate section devoted to opera CDs and DVDs. classicstoday and WQXR.com link to this site.
classicalcdreview.com. Another excellent site for reviews of classical CDs and DVDs. You can also order from this site.
soundsandfury.com. An always interesting blog on what is going on in classical music by the irascible and often opinionated AC Douglas. His commentary is always interesting, and there are links to many other classical music blogs.
musicweb-internatinal.com This is an English classical music website with many really interesting articles on famous and obscure composers, reviews of CDs, DVDs, and live performances, book reviews and much more.
Therestisnoise.com. This is the blog of Alex Ross, music critic of New Yorker magazine, and author of the acclaimed book ,also called The Rest Is Noise, an absorbing cultural history of classical music in the 20th century. This book is a bestseller, and not to be missed. There are many links to other classical music blogs etc.