In terms of market share, Repost.us is clearly lagging behind, losing to Slashdot Widget in all segments.
Repost.us has better usage coverage in more websites categories. Including Health, Games, Music & Audio, Arts & Entertainment and 4 other categories.
Slashdot Widget is leading in Internet & Telecom, People & Society, Religion & Spirituality, Shopping and 4 other categories.
Repost.us is leading in most countries, including United States and Spain.
Slashdot Widget hasn't got a lead over Repost.us in any country.