By applying this you can auto tweet into Twitter by just updating your Facebook pages.This facility is now only available for Facebook pages but I think in near future they will also validate it for profiles also.
- Go to: http://www.facebook.com/twitter/
- Login with your Facebook id.
- It will show all your pages in drop down. select and add.
- Next you can share every thing or you can share the selected things.Whichever suits you, just select one.
