MOG has announced that it received a $2.8M strategic investment from Universal Music Group and The Angels’ Forum. We’ve also heard that Sony BMG was also part of the round, which means two major record labels have come together to invest in the same online music venture.

Music afficianados can use MOG to blog about their favorite artists and tracks. It also provides software that detects which songs you play on your computer (regardless of the media player you use) and shares your listening habits with friends on the site. This software is not a plugin like iLike’s but a standalone client that runs in the background.

Since December, Rhapsody has also integrated with the service, allowing MOG users with Rhapsody accounts to play songs mentioned on MOG directly from blog posts.

This strategic investment hopefully will mean that we’ll see even more music delivered through MOG, perhaps eventually a free streaming service for everyone regardless of their Rhapsody status (just speculation at this point). This would align their service more with the Imeem model of providing free ad-supported, and label-sanctioned, music.