Need online voicemail service

Anyone know a good online service that offers a US phone number to call so someone can leave you voicemail? This would be a service that is preferably free or very cheap. I don't need to make calls from this number, just to receive voicemails and be able to access them online.

try callcentric.com

a user here has recently showed us how to get YT PVA's with the free service from callcentric (free US phone number & voicemail)

Google voice is free, easy to use, and easy to set up. Not the easiest to find a phone number though in my experience. Hope this helps