To be fair, I don't have access to raw data so I cannot make a fully informed decision on the matter. However, given that Yahoo and AOL have been providing the

To be fair, I don't have access to raw data so I cannot make a fully informed decision on the matter. However, given that Yahoo and AOL have been providing the service for a long time, I doubt they would have been doing so if it were not sustainable. Even large companies like that have financial limits. Google Voice not only provides free texting, they also give each user their own phone number. Granted they are planning on charging for calls soon (from what I've heard), I will not have as high costs as them since I am only providing texting and don't need millions of phone numbers.