SMSer SMS Widget
SMSer is really easy to use widget which allows you or your clients to send a text messages to cell phones world wide from your Wordpress web-site.
You can paste your advertisement text like signature and it will be shown at the end of each sent SMS or leave a field empty. Example: This SMS sent from /yoursite.com/.
You can lock SMSer on one country or select /No limits/ to allow sending worldwide. You can fix the limit for SMS message size.
At this moment, SMSer supports 12 languages of interface: English, Spanish, Germany, French, Italian, Portuguese, Finnish, Norwegian, Russian, Hebrew, Turkish, Swedish.