Google has now enabled users of its gmail mail service to send out free sms to their contacts by adding their phone number. Each user will get 50 credits daily and each credit will represent 1 sms. If you send out SMS from gmail to your friends and they reply back via sms, it will be delivered straight to your inbox. Very coo! So how does Google make money from this? Well.. there is always Google ads which appear in your mailbox but it does have tie up with major telecom operators and each outgoing sms generated from these operators will result in some kind of revenue sharing with Google.

Read the full article about this on HT.