We are developing an online application that will help you manage all of your clients and proposals that you send. The application is called SixCentral (
SixCentral : Client Proposal Organization and Management) and we are gauging interest and looking for possible early stage beta testers as well as feedback from professionals in the business. As freelancers ourselves, we felt that this was a huge gap in the freelance process, and ultimately wanted to build the application to help us manage our own workload. We would love any and all feedback, as we are now working to develop this application for all freelances!
Here is an excerpt from the site:
"With SixCentral, you will have the ability to have a single place to organize all of your current and prospective clients. From there, you can create new project proposals and send them to any client in your database. Your clients will have the ability to accept, deny, postpone or comment on your proposal. Everything will be stored at SixCentral — instead of your inbox."