AdiInviter Pro - The ultimate contacts importer and tell-a-friend system for your website.
LeadMaster - The LeadMaster LeadMasterCRM All-in-One solution includes: marketing automation, lead management, email marketing, website integration & much more.
CloudSponge - Companies from every industry use CloudSponge’s Contact Picker to get access to their users’ address books.
Servetel - Communication management solution
OpenInviter - OpenInviter is a free import contacts (addressbook) script from email providers like Mail2World...
Outreach - Outreach Is Your Sales Communication Platform