You can send a text message with your computer. Use the 10 digit wireless number and the following chart to email a text message. This is a great tool for prayer chains or just to keep your people informed. You can create a group list with your favorite email application. Be aware that wireless providers sometimes change their format.   

AT&T – cellnumber@txt.att.net
Verizon – cellnumber@vtext.com
T-Mobile – cellnumber@tmomail.net
Sprint PCS – cellnumber@messaging.sprintpcs.com
Virgin Mobile – cellnumber@vmobl.com
US Cellular – cellnumber@email.uscc.net
Nextel – cellnumber@messaging.nextel.com
Boost – cellnumber@myboostmobile.com
Alltel – cellnumber@message.alltel.com