Digg Widget
2,162 websites

Digg Widget is free to use

http://www.widgetbox.com/widget/DiggWidget

10 Nov 2007 ... Get the Digg Widget widget on Widgetbox.com! Show the Digg stories youve Dugg, in your choice of colors! Straight from Digg themselves!

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StumbleUpon Widgets
8,543 websites

StumbleUpon Widgets offers both free and paid options

http://www.stumbleupon.com/dt/widgets

Widgets. Bring Out The Best. Highlight your strongest content with a StumbleUpon Widget on your site. Get going in just two easy steps. Start Now - Its Free!

Market Share by Top Websites

1 StumbleUpon Widgets is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Digg Widget is clearly lagging behind, losing to StumbleUpon Widgets in all segments.

Websites Categories

1 StumbleUpon Widgets has better usage coverage in more websites categories. Including Computers Electronics & Technology, Arts & Entertainment, Science & Education, News & Media and 20 other categories.

2 Digg Widget hasn't got a lead over StumbleUpon Widgets in any websites category.

Geography

1 StumbleUpon Widgets is leading in most countries, including United States, India, United Kingdom, Italy and 119 other countries.

2 Digg Widget is leading in Moldova, Senegal, Nicaragua, Tanzania and one other country.