ShareThis is a free one-step sharing tool that saves you time and makes sharing online hassle free. You can share anything on the web to your choice of social bookmarking options, post-to-profile and blog choices, Email, AIM, or even as a text message to a mobile phone.
The ShareBox is a place where registered ShareThis users’ shared content is stored. If you want to retrieve something you have shared in the past, share it again or would like to tag and organize your shares, this can all be done within the ShareBox. In addition, users can save and tag content directly to their ShareBox from within the widget for easy searching later.

I created today a ShareThis account to include the ShareThis widget to my WordPress websites.