Pobuca Connect - Connect with your contacts.
draw.io - Online diagramming application
1CRM - 1CRM is an All-in-One CRM solution for sales, marketing, project and order management. Download 1CRM Free, and find out why it's right for your business.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Contact Boss - CRM database management tool for managing contacts
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.