Can anyone help me how to customize your custom page?

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I have seen many users posting links, videos and many personal stuff in their home pages. They also put mp3 playing in the background. Does anyone have the real idea of how to do that? I have searched whole mylot but didn't get the options to edit the home page. You can see my page and suggest how to put my personal content like video links, links to my website and blogs and feeds from other websites. http://www.mylot.com/niharikadacoolest2