A new announcement today from Shutterstock about the Facebook version of their Twitter app, allowing you to share your daily sales or acceptances with your networks:

Notice to all microstock folk that are also Twitter users: Shutterstock has launched "Shuttertweet" to help you promote your portfolio. If you don't have an account at Shutterstock, sign up here to sell your photography, illustration, or video. The press release is pasted below for more information.