Find below the list of open-sourced free content Management System providers.
Personally I have used only Joomla and Worpress. They are pretty good. Since they are used by many people, lot of plug-in/extenstions/mods are available for them.
If anyone finds any other good CMS you can share it thro' comments.
I came to know that some companies are providing their own CMS. But I won't recommend them. Because we need to depend on them for making any further changes.
But we can find lot of developers for any open-sourced CMS.
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