ShareThis - Grow your audience with easy-to-use sharing tools.
Gleam - Marketing apps designed to help you grow your Business
Shareaholic - Shareaholic is trusted by over 300000 brands, businesses, agencies, and individuals to grow website traffic and engagement 24 hours a day, 7 days a week.
RafflePress - RafflePress is the best WordPress contest and giveaway plugin. Grow your email list, followers, and website traffic with viral giveaways in WordPress.
AddToAny - Share buttons by AddToAny, the universal sharing platform for websites and apps.
Viral Loops - Viral Loops is a viral and referral marketing platform to launch ranking competitions, sweepstakes, pre-launch and referral programs.