Proof - Website conversion rate optimization and visitor monitoring
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
Picreel - Recover abandoning visitors and turn them into customers
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
GetSiteControl - Website popup builder & email marketing suite for ecommerce
Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.