UpViral is a cloud based tool (SaaS) to easily create viral competitions, giveaways and sweepstakes. People can join your contest/giveaway by sharing your content on all major social networks or performing one or more custom actions (as Join your FB Group, Subscribe to Messenger/Podcast/YouTube Channel, Follow you on Instagram/Twitter, Visit Webpage, Leave a comment). The more people share and perform actions, the more (entry) points they get and the higher the chance to win the contest or get more free rewards. It’s a super list builder, awesome viral sharing tool, and smart incentive tool to stimulate and reward people to perform your call to actions.
SocialNeos is a WordPress plugin for locking content to entice your visitor to optin to your mailing list or to share your content on Facebook, Twitter, LinkedIn or Google+. You can lock all kinds of content, like full webpages or specific parts on your blog such as text paragraphs, images and/or videos. You can even set several content locks on one webpage. Probably the best feature is that when your visitor unlocks the content by sharing your content, the plugin automatically captures their email as well. However, if you prefer, you can also just ask your visitor to optin to your newsletter for unlocking the content (without the social sharing). So the benefits are two-fold: viral traffic and list building.