VerifyShare - instagram, instagram tools, giveaway, parsing,
Pickerist - Instagram raffles from comments on 1-click
Giv - Snapchat & Instagram giveaways made easy
Retweet Pick - Retweet Pick is a random name generator for Twitter giveaways via generating a winning name from the list.
Freeplee - Free raffles service with content, created by users
Retweet Picker - Retweet Picker is an online tool that is helping you to select the random winner from Twitter for the giveaways.