10 Unsung Collaboration Tools — Many of Them Free

Collaboration is in full swing on the web, for both social and work-oriented purposes. Most of us can rattle off the well-known applications that are available, but there are many targeted, useful collaboration apps that are more offbeat. Here are 10 of them, many of them free.

Redliner. If you’ve ever tried to collaborate with others on documents over email, you know that version control problems and many other issues can arise. Redliner is becoming one of the more popular online tools to get around these problems. Unlike, say, Google Docs, it offers a complete commenting and revision system. Check it out in the screencast here. Redliner is currently being beta tested and you can use it for free, although it will eventually move to a paid monthly model.

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