Here are some very interesting Websites you should know:

http://www.hitquarters.com/ :

Contact Record Label A&Rs, Managers,
Producers, Songwriters & Publishers.

Welcome to the world's largest music industry search directory, including contact information and individual track records.

Knowing the track records of music industry people is absolutely necessary and crucial for the career of every unsigned artist.

http://www.songquarters.com/ :

SongQuarters presents songwriting leads updated daily and provided directly from the sources for:

• The world's Top 500 most successful artists
• Newly signed and developing artists from the hottest A&R and management offices
• Unsigned / up-and-coming artists
• Film/TV & Computer Games
• Commercials & Advertisement Opportunities
• Co-writing Opportunities

Including:

• Full contact information
• Guidelines to what style of music is wanted
• Song samples and pictures
• Deadlines for material
• Essential info such as submission procedure, co-writing conditions, credit preferences, biographic material, discography, chart positions etc.

+

Lists of the recording status of the world's Top 500 artists. Includes 95% of all Top 20 artists in recent years in all major territories and all major genres.

http://www.allmusic.com/ :

Resource for everything you want to know about Artists, Bands and their work.

http://www.mediabiz.de/news/ :

Mediabiz News