This is a good tool for web sites.
Add an Amplify It! Button to your site
Amplify.com offers a different content sharing ability than the regular options from the likes of AddThis and ShareThis. With Amplify.com, you are able to ‘Clip’ parts of web pages and share just those parts. Amplify.com also gives you a page of your share clips that you can also share with others and with members of the Amplify.com community.
An Amplify It! button
Add the Amplify It! button to your web site or blog so your visitors can share their favorite parts of your articles or blog posts all around the web. Sharing with Amplify will always include a link back to your post.
A small menu with various sharing options should appear on your screen. Click ‘Clip This Page’ to start clipping and sharing the content.
With WordPress integration
The Amplify Button Plugin for WordPress lets you add an Amplify button to each of your blog posts so your visitors can share their favorite parts all around the social web. Sharing with Amplify will always include a link back to your post.Read more at www.widgetslab.com