Dux Soup - Dux-Soup is a lead generation tool for LinkedIn.
HEY - Email at its best, new from Basecamp.
BuzzBuilder - BuzzBuilder is a web-based lead generation tool that manages targeted email marketing campaigns and generates B2B sales leads.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
CloudSponge - Companies from every industry use CloudSponge’s Contact Picker to get access to their users’ address books.
InstAddr - Disposable email address application.