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Kona – Organize, discuss, and get things done together with your groups. Tasks, Events, Files, Messaging, and more.

via www.kona.com

Another small work/family/friends/group application to organise, discover and get things done together. Looks like a nice app - these things are certainly in a position to take on the more traditional role of Wikis I think to get stuff done. Not played with this myself, so cannot comment further.

Minutes.io

Take minutes easily!. This is an app that you can use to take minutes quickly, with to do lists, notes, links and so on, and publish them using secret URLs, with personalised email, to'dos highlighted and grouped.

Groupboard

Free online collaborative whiteboard and chat. Groupboard is a set of multi-user java applets including whiteboard, chat, message board, games and voice conferencing which you can place on your web page by simply copying a few lines of HTML code. You can also run Groupboard on your own web server. It can be used for tutoring, distance learning, training, or simply for fun! With the whiteboard you can upload background images and draw on top of them, and all of the users connected to the board will see the changes in real-time. Free for 5 users.

timeXchange.net

timeXchange.net is a member-based, on-line timesheet exchange for individuals and teams who are required to submit, route, approve and collect project time-tracking details. timeXchange.net is focused on improving business performance by providing a single application that can serve multiple organizational affiliations and back-office applications simultaneously. Also has an iPhone app as well. Oh yes, and it's free as well.

Mindomo - Web-Based mind mapping software

Mindomo is a versatile Web-based mind mapping tool, delivering the capabilities of desktop mind mapping software in a Web browser - with no complex software to install or maintain. Create, edit mind maps, and share them with your colleagues or your friends.

bubbl.us

bubbl.us - free web application for brainstorming online. Create colorful mind maps online Share and work with friends Embed your mind map in your blog or website Email and print your mind map Save your mind map as an image

FreeMind - free mind mapping software

Main Page - FreeMind - free mind mapping software. It's a free download - it looks very impressive.

Text 2 Mind Map

Text 2 Mind Map - An online text to mind map converter. Add in a bunch of terms, indent as appropriate and this gizmo will turn it into a mind map that you can download. Thanks to Jenny for this one.

Twiddla - Team Collaboration

Twiddla  is a free no-setup, web-based meeting playground. Real collaboration, in real time. Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Browse the web with your friends or make that conference call more productive than ever. No plug-ins, downloads, or firewall voodoo - it's all here, ready to go when you are. Browser-agnostic, user-friendly, mom-approved. Oh yeah, it does one-click audio chats too.

LiquidPlanner

LiquidPlanner.It's online project management software that offers teams a complete project environment, rich social networking features, and a revolutionary way to manage uncertainty.