Puush is a really interesting free tool with which you can take a screenshot at a time using keyboard shortcuts and quickly share it with friends and contacts. It has versions for operating systems Windows and Mac .
The only requirement is to create a free account in Puush, which will give us 200 Mb of space for image storage in the cloud. If we expand this limit we can choose one of the subscription methods.
Once registered to the service we only have to take a screenshot it will automatically upload to our portfolio in the cloud, and paste the url which is attached to the clipboard on Twitter, Facebook, MSN, chats, forums, emails, etc.
Link | Puush