Txt Card for fun in USA to text your contact info such as business card free

Usually, when you want to give you contact info to someone by SMS,  you need to send a SMS to him/her, but have you ever thought about this below: 
When you want to give out your contact info such as business card, just tell someone to send a text message to "20757" with your keyword "the keyword you choose when at sign up". When the person sends the text message, he or she will get a text message back with your contact info (that's TxtCard here)


What is a TxtCard? Just like a business card. Sign up here and get your TxtCard for fun.