To install the "Pin It" button in Firefox:

• Display your Bookmarks Bar by clicking View > Toolbars > Bookmarks Toolbar
• Drag the "Pin It" button to your Bookmarks Toolbar
• When you are browsing the web, push the "Pin It" button to pin an image

To install the "Pin It" button in Internet Explorer:

• Display your Favorites Bar by clicking Tools > Toolbars > Favorites Bar
• Right-click the "Pin It" button and select "Add to Favorites"
• On the pop-up window, select "Create in: Favorites Bar"
• When you are browsing the web, push the "Pin It" button to pin an image

To install the "Pin It" button in Chrome:

• Display your Bookmarks by clicking the Wrench Icon > Bookmarks > Show Bookmarks Bar
• Drag the "Pin It" button to your Bookmarks bar
• When you are browsing the web, push the "Pin It" button to pin an image