PCMechanic's got an interesting article up for anyone who might be looking to make the switch to VoIP-based phone service at home. I don't think you'll get info like this handed to you so easily anywhere else, that's for sure:

"There are many ways VoIP saves you money...These six items will directly save you money. I will go over each of them in detail in this article. As a bonus, I’m throwing in a little something extra. It is an MS Excel spreadsheet that has the formulas worked out to show how much money you can save and how long it will take to get a return on the investment in VoIP equipment you will have to make."