StumbleUpon is a social bookmarking site that allows the users to discover new sites according to there interest. It can be a webpage, photos etc. and it brings huge amount of traffic if it gets popular but this service was only available for Firefox and IE users. The toolbar was not available for Opera users but now with Opera Stumbler toolbar, users can stumble whatever they want to in Opera, discover new sites share them with there friends.

To use the Toolbar, first login with your stumbleupon account and start using the toolbar.

According to the developers, the newer version will have more exciting features which include :

• Support for additional languages
• Custom keyword stumbling
• Fraud protection for stumbles
• Icons for button/menu version
• Stored stumbling preferences
• Undo page rating
• Share page with friends
• Stumble pages from one member
• and much more…

Download : Opera Stumbler