All Music Guide
The All Music Guide lives up to its name with information on music genres from classical and world to rock and blues. Explore musical styles, read album reviews, and get music suggestions in one spot. The All Music Blog is also a great place for reviews and music news.
Billboard magazine is a major trade magazine that, in addition to offering its famous music charts, also reviews hundreds of songs and albums. Visit Billboard to read their reviews and to leave your own feedback about your favorites.
Serious fans of classical music should get to know Classical-Music.com, the official site of BBC Music Magazine. Although the magazine's articles aren't available to read online, the website offers music news, blogs, new release announcements, and hundreds of new reviews each month!
The Onion AV Club
The Onion AV Club's Music page is full of up-to-the-minute music news about music's big wins, losses, and shenanigans. You can also find plenty of album reviews with handy, easy-to-recognize grades that can help pick out the best of the best at a glance.
Rolling Stone magazine has one of the biggest reputations in music, and for good reason. Check out the magazine's reviews from past issues all the way up to the current hot releases. Curious what Rolling Stone said about Nirvana's Nevermind when it was released? How about what they thought about Pink Floyd's Dark Side of the Moon? It's all available here, on the website.