SMS Web Ad is both an SMS Gateway (by which you can create your own script using ASP, PHP and PERL) and an ASP based SMS advertising system which allows you to administrate unlimited advertisers that support the costs of SMS. Some features: CREATE YOUR OWN ASP, PHP AND PERL SCRIPT FOR SMS SENDING; sending up to 160 characters per SMS; Sending over 200 countries; Deferred sending; Editable SMS cost for each advertiser; Customizable advertising text, both on sending form and SMS text;