... see from the attached image we want to do something a little different but I believe Multi Sites has done this before so here goes... We'd like multiple instances of the primary website installed on already created sub domains (created through cPanel). Each sub domain should be able to use the ...

Yes, exactly, MightySites allows to run multiple Joomla websites from single installation of Joomla on master site.

Slave sites are created as parked domains in hosting panel - so they use same files.
But each site can use own database tables and hence have own contents.

Yes, it can be possible please check this case study:
http://alterbrains.com/joomla-extension ... or-modules

Once a new user is registered in Joomla he is assigned to one default usergroup.
Next you can manually assign user to multiple usergroups.

The main tasks are:
1. Run multiple Joomla websites from single Joomla installation.
2. Share certain database tables between sites.

1 / Is it possible to build a form to pick values that are used as SQL queries parameters ? Yes, you can setup multiple filters and use their values as tags in query. 2 / Is there a way to display a calendar view ? And if not, can i get the query result as a PHP array (for example) ...

The most exciting feature of this release is new question type 'Rating Table' which allows to display table of multiple sub-questions with single option per question.

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Sent.

I strongly recommend to read case studies http://alterbrains.com/joomla-extension ... se-studies and/or contact us before, this will minimize chance of having issues. Multiple sites itself is complex feature.

... structure will be something like this: authorwebsite.com book1.com book2.com book3.com Potentially, some of the articles might be shared across multiple websites such as a contact page, new book announcement etc. It's not possible to share "some" articles, each site either has independent ...

... structure will be something like this: authorwebsite.com book1.com book2.com book3.com Potentially, some of the articles might be shared across multiple websites such as a contact page, new book announcement etc. 1. SEO Duplicate Content Question Does MightySites prevent duplicate content penalties ...