If you've received the message from A&R Alyssa Jamison fishing for phone numbers be aware...
SongPlacement lists their address as:
Alyssa Jamison
7039 W. Sunset Blvd
Hollywood, CA 90028
(323) 988-5888
This is an empty lot on Sunset. Don't get taken by this scam. They're not legit. They try to charge you to "place your music". They usually contact you on myspace. They send you a messages asking for your phone number. This isn't how legitimate business arrangements work in the music world.