Published at LXer:
The term open core is poison for an open source project today isn't it? More often than not, the term open core refers to some crippled piece of open source software that only really works when paired with some type of proprietary shell that make the software usable. Yet, the open core model – is still what many open source software firms (or at least, those that have raised venture funds) are embracing. There is another way. It's called the Layered Open Source Model
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