This will seem counter intuitive: the purpose of the Home Page is to get people off the Home Page! Yeah, you spent all that time, effort, and money to get people there and now you read this?
This lecture looks at several home pages and finds several constant threads that they all share. Please do not read this overview and skip the video. These common themes include:
Much of the lecture is devoted to looking at available resources to check the above points. Once your page is complete, the job is not over and you must review the work to be sure the search engines can see and rank the page.