Review of Facebook free SMS site:
SMS site description:
The Facebook app smsBook lets members send free sms from the Facebook website to any mobile phone, whether recipients are Facebook members or not. So that's free international sms. You can also choose to receive sms from Facebook categories. ...
Registration required, etc:
|Confirmed delivery of messages?||No|
|Message Quota?||None stated.|
Facebook do say that not all networks are supported, but all our test messages arrived in seconds. You can also send chat messages from the same window to other online Facebook members.