I am new to SharePoint 2010 and I have to develop a portal for my company which has several departments. I've created a HomePage now I want to come up like the following navigation.
Departments
Finance
Marketing
Sales
South Zone
East Zone
What should I do now? Create Site collection as "Department"? and Finance and marketing and sales would be sub-sites? Can anyone please mention as per my hirerchy what should be the each site I mean which one should be site collection and which one should be sb-site....and also how to make this top navigation as appear to be fly-out menu rather than tab based.
Thanks