In October i was writing about some open source and free online invoicing systems. Today i found new online project management and invoicing tool called Project Bubble. Project Bubble is a free, simple and fun project management web app for freelance or personal projects.

Project Bubble works great for freelancers who work on their own, becouse it was made from such a freelancer – things are usually best if you do it for yourself…

Becouse the first bubble’s thing is simplicity, id doesnt have a lot of features, it just covers on what you really need:

• Make some projects
• Insert some tasks, keep track on billable time
• Have some companies and contacts
• Connect all together with invoices

There are also two important things – the service is free and intends to stay that way, and the site is live and evolving – it has a lot of feedbacks, and there are plans to add some more functionalities, such as:

• Multiple user login – share and delegate projects
• Client login – let clients comment on projects/tasks
• File tagging – 1 GB file storage, and tagging to projects
• Custom invoice templates – branded to your company
• Custom project page templates – branded to your company
• Project RSS feeds – have clients subscribe to projects/tasks
• Recurring invoice – Automatic billing
• Data import/export – import and export all the data

You can also vote for what you need most on uservote.