http://sms.business.gr/
http://www.nna-portal.com/sms.htm
http://www.dynamicsms.com.au/intro.asp?ref=0973706464&refc=303
http://apn.gr/mlm/index.cgi
http://www.sms.gr/
http://www.gr-sms.tk
http://www.smsalerts.tk
http://www.forth-net.com
http://panoslamia