Echo is leading in Top 10K Sites and Top 100K Sites.
Echo has better usage coverage in more websites categories. Including Arts & Entertainment, Adult, Science, Investing and 12 other categories.
Slashdot Widget is leading in Internet & Telecom, People & Society, Religion & Spirituality, Shopping and 3 other categories.
Echo is leading in most countries, including United States, United Kingdom, Russia and Reunion.
Slashdot Widget is leading in Romania.