SaaSiter Contacts Importer - Allow users to import contacts into their system.
ShareThis - Grow your audience with easy-to-use sharing tools.
CloudSponge - Companies from every industry use CloudSponge’s Contact Picker to get access to their users’ address books.
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.
AdiInviter Pro - The ultimate contacts importer and tell-a-friend system for your website.
AddToAny - Share buttons by AddToAny, the universal sharing platform for websites and apps.