Drag and Share is a Mac application which helps you share your pictures with a simple Drag and Drop.
Drag a picture from the Finder and drop it into the Drop Area. You can:

upload it to your Twitter Account;
upload it to your Facebook Account;
upload it to your Flickr Account;
add it to iPhoto;
send it via AirDrop;
send it via E-mail;
send it via Messages;

The Drop Area has even a text field where you can write some text to add to your picture (it works for Twitter, Facebook, Messages and E-mail).

So, got a great picture? Share it at the same time in several ways! It's easy! Just drag and share!