NewsWhip - Chrome extension that checks how viral your content is
ViralSweep - Grow your fans and increase sales with sweepstakes and giveaways.
Viral Coefficient Calculator - Calculate a viral referral loop for apps
Woobox - Woobox helps you easily create powerful contests, sweepstakes, coupons, and more to grow your fans...
Promo Self Serve - Launch a promotion across the internet in 90 Seconds
Gleam - Marketing apps designed to help you grow your Business