VerifyShare - instagram, instagram tools, giveaway, parsing,
Landing Pages in MailChimp - Easy to build, custom landing pages for free
Giv - Snapchat & Instagram giveaways made easy
Viral Loops for Startups - Virality for startups made easy 💪
Retweet Picker - Retweet Picker is an online tool that is helping you to select the random winner from Twitter for the giveaways.
Carrd - Simple, responsive one-page site creator.