UpSellit
3,030 websites

UpSellit offers both free and paid options

http://www.upsellit.com

UpSellit provides eBusinesses with pay-for-performance site abandonment recovery solutions that increase conversions with a combination of web analytics, lead generation, and consumer engagement technologies. Founded in 2005, UpSellit l...

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VKontakte Widgets
13,285 websites

VKontakte Widgets is free to use

http://vk.com/developers.php?p=Comments

The VK comments widget lets you add comments to your site in a matter of minutes. Installing the ... Read more on the advantages of the VK comment widget. 1.

Market Share by Top Websites

1 VKontakte Widgets is leading in The Entire Web.

2 UpSellit is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 VKontakte Widgets has better usage coverage in more websites categories. Including Science & Education, Arts & Entertainment, Computers Electronics & Technology, Health and 18 other categories.

2 UpSellit is leading in Lifestyle and Finance.

Geography

1 VKontakte Widgets is leading in most countries, including Russia, Belarus, Ukraine, Kazakhstan and 53 other countries.

2 UpSellit is leading in United States, United Kingdom, Australia, Canada and 51 other countries.