Review of TextEm free SMS site:
SMS site description:
TextEm.net is a free text message service to cell phones in the United States, most cell phone carriers are supported, but not all. See the up-to-date list of supported carriers on the TextEm website. You need to know the cellular provider of the mobile number you're texting. Your IP address is logged when you text, and you can block your number if you receive spam. ...
Registration required, etc:
|Confirmed delivery of messages?||Don't Know|
|Message Quota?||Not clear, but probably unlimited.|
If you log in and create a free account and if you include your email address in the SMS you send, your friend can respond and you will get the reply to your email address. Normal fees (if any) apply to those people receiving texts.