RockYou also claims leadership over "all other application developers, including Slide" on the following apps:
- Ad network
- Messaging: X Me vs. SuperPoke
- Quizzes: Likeness vs. My Questions
As for slideshows, the app that started it all for both RockYou and Slide, RockYou says it is #1 in Facebook slideshows "with over 5x the engagement versus its nearest competition: 42,294 to 7,315".
While tonight RockYou has engaged in some fun one-ups-manship over its rival Slide, social networking apps are potentially big business - why else would Sequoia Capital have invested in RockYou? The company claims to have "over 35 million users, serving over 180 million widget views per day" and it makes apps for Facebook, MySpace, Bebo, hi5, and others.