Step by Step on using SharePoint Search & Catalog
A great way to leverage SharePoint for Intranets or Extranets and frankly any Web Content Management related project is the Product Catalog.
Though the Product Catalog has nothing to do with Products, it is underused because of the name it was given. See how you can use it to do more with SharePoint Search.
This blog tells you more: SharePoint Product Catalog for more than just Products