Organic-Groups multisite architecture I have a task to build a series of websites all related to the same core business.

Initially, I was going to build each one as a separate website.
Later however, I was told the sites have to be able to share content which changed my plans.

Going by the logic that the easiest way to build multiple Drupal websites which share content is to build one site and make it work and appear as many. 

So, I decided to build the site in Organic Groups but I have the following functionality challenges.


How can I direct unique URLs to individual Groups on my site. I:E configuring www.mysite.co.uk to visit Group#1 and www.mysite.com to visit Group#2 etc
Is there a way to create content on the Drupal site which can optionally be shared/posted to one or more of my Groups? The idea is to create content on the primary 'website' and the same content displays in the Groups/'sub-sites'.


I would appreciate any suggestions.

Thanks.
Honestly, I think that the module Domain Access would meet your needs more than Organic Groups would. A friend of mine recently created a site matching exactly your criteria.


  Module Package includes:
  
  Domain Alias 6.x.2 and higher only by bforchhammer. Allows you to
  specify subdomain aliases and domain name patterns for domain entries
  so that multiple hostnames are matched on a single domain entry.
  
  Domain Configuration -- Allows you to change select system variables
  for each subdomain, such as offline status, footer message and default
  home page.
  
  Domain Content -- Provides a content administration page for each
  subdomain, so that affiliate editors can administer content for their
  section of the site.
  
  Domain Navigation -- Supplies a navigation block with three themes.
  Creates menu items for each subdomain, suitable for using as primary
  or secondary links.
  
  Domain Path -- Enables custom path aliases per domain.
  
  Domain Prefix -- Provides a user interface for enabling select
  database table prefixing for use with subdomains. The Drupal 5 version
  is not fully functional on pgSQL, but Drupal 6 version is.
  
  Domain Settings -- Exposes domain-sensitive variable settings to most
  configuration forms. Requires Domain Conf.
  
  Domain Source -- Allows editors to set a primary source domain when
  links are written to content from other domains.
  
  Domain Strict -- Forces users to be members of domains in order to
  view content. This is a sample extension module that uses the API.
  
  Domain Theme -- Allows separate themes, theme settings and colors for
  each subdomain.
  
  Domain User -- Allows for the automatic creation of subdomains for
  registered users.
  
  Domain Views by mrichar1 and nonsie -- Provides Views integration for
  Views 5.x.1 and 6.x.2 or higher.