Google Start Page background information:

• The Start Page lets you create a unique, dynamic place for your users to preview and access their inboxes and calendars, find relevant information from your organization or business, and search the web. You customize the layout, header information and color scheme, as well as the page's default content, which can include many different iGoogle gadgets, your own content and links, and RSS feeds. After your users log in, they can further customize the Start Page.
• With the Start Page, your users only need to remember a single internet address to access all their Google Apps services. That way, you can save time and clicks for everyone, and make it easier for your less tech-savvy users to access their new communication tools.
• You can create and publish a Start Page from the Google Apps control panel.
• Google Start Page Training