Via Talk is offering VoIP phone service from $9.95 per month. Turn the power of your broadband connection into a lower monthly phone bill. The same great features you’d expect are there....Caller ID, Voicemail and in-network calls. All of this will lower your monthly phone bill dramatically

Pal Talk is an audio/video chat service. Not only can you talk to your friends, you can also see them. You can choose a chat room, or make your own. Fun!

Skype is a little piece of software that lets you make free calls over the Internet. Skype is revolutionizing the telecom world by allowing our users to make superior quality voice calls to other Skype users for free and to landlines and mobiles worldwide for the price of a local call. They’ve already had over 100 million downloads of our software and every day over 150,000 new users join us and our 33 million active users. Because Skype is free to download, easy to setup and is generating lots of interest. Try it!

JoiPhone offer the best VoIP service at the best price with 2 residential plans:
$6.95/mo JoiPhone with 100 free Local and LD minutes
$14.95/mo JoiPhone Unlmited with Unlimited Local and LD minutes. Right now, they have a special offer for new subsbribers.

Packet8 is an affordable and easy-to-use broadband telephone and videophone service designed with both residential and business customers in mind. Packet8 allows anyone with broadband (high-speed) Internet access to use their regular phone to make UNLIMITED calls to anywhere in the U.S. and Canada for as little as $24.99 per month. Packet8 subscribers with videophones can make video calls for as little as $24.99 per month.. Sign up today and receive an automatic discount of $24.99.

VoIP.com Unlimited calling for $19.99 per month, or $16.99 per month for a yearly subscription. They also offer the first month free.